Archive of Seminar Lectures
Seminar: Darstellungstheorie von Algebren / Quantengruppen
BIREP Representation Theory of Algebras at Bielefeld. See also:
M. Künzer (Bielefeld)
Kan's proof of the Hurewicz Theorem
Tuesday, 4.6.1996, 14:00 c.t.
U5-135
C. M. Ringel (Bielefeld)
Thin hammocks
Tuesday, 4.6.1996, 14:00 c.t.
U5-135
C. M. Ringel (Bielefeld)
Thin hammocks II
Friday, 7.6.1996, 14:00 c.t.
V2-210
R. Marsh (Bielefeld)
Thin hammocks III
Friday, 7.6.1996, 16:00 c.t.
U5-135
Y. Lin (Bielefeld)
Quasi-hereditary endomrphism rings of modules over tame hereditary algebras
Tuesday, 11.6.1996, 16:00 c.t.
U5-135
H. Asashiba (Osaka/Bielefeld)
Applications of a covering technique for derived equivalence
Tuesday, 18.6.1996, 14:00 c.t.
U5-135
D. Arnold (Waco/Essen)
Representations of posets and Butler groups
Tuesday, 25.6.1996, 14:00 c.t.
U5-135
R. Marsh (Bielefeld)
Tight monomials in quantized enveloping algebras
Tuesday, 25.6.1996, 16:00 c.t.
U5-135
A. King (Bielefeld)
Minimal projective resolutions of algebras
Friday, 28.6.1996, 13:00 c.t.
V2-210
H. Asashiba (Osaka/Bielefeld)
Application of a covering technique for derived equivalence II
Friday, 28.6.1996, 14:30
V2-210
J. Reinhold (Düsseldorf)
Elementary stones over wild hereditary algebras
Tuesday, 2.7.1996, 14:00 c.t., U5-135
H. Asashiba (Osaka/Bielefeld)
Application of a covering technique for derived equivalence III
Wednesday, 3.7.1996, 14:00 c.t., V3-212
M. Takane (UNAM, Mexico/Bielefeld)
Series of introductory lectures on Spectral theory of hereditary algebras:
Cones and matrices which leave invariant cones
Tuesday, 2.7.1996, 16:00 c.t., U5-135
Quadratic forms
Wednesday, 3.7.1996, 16:00 c.t., V2-234
Coxeter matrices of hereditary algebras
Tuesday, 9.7.1996, 16:00 c.t., U5-135
Unicyclic graphs
Wednesday, 10.7.1996, 16:00 c.t., V2-234
C.M. Ringel (Bielefeld)
Exceptional modules are tree modules
Thursday, 5.9.1996, 9:00 c.t., U5-135
J. Xiao (Beijing/Bielefeld)
Tilting decomposition of semisimple Lie algebras
Thursday, 5.9.1996, 10:30, U5-135
J. Schröer (Bielefeld)
Hammocks for string algebras and applications
Thursday, 12.9.1996, 9:00 c.t., U5-135
H. Helling (Bielefeld)
An algebra useful for hyperbolic geometers
Thursday, 19.9.1996, 10:30, U5-135
D. Green (Essen/Bielefeld)
Computer calculations of cohomology rings for p-groups
Thursday, 10.10.1996, 10:00 c.t., U5-135
D. Vossieck (UNAM/Bielefeld)
Critical bimodules with postprojective components
Wednesday , October 30, 1996, 9:00 c.t., V3-212
D. Green (Essen/Bielefeld)
The spectrum of the Chern subring
Wednesday , October 30, 1996, 11:00 s.t., V3-212
A. Buan (Trondheim)
Complements of almost complete tilting modules
Friday, November 8, 1996, 13:00 c.t., V2-210
S. König (Bielefeld)
Finite dimensional representations of some Lie superalgebras
(on work of J. Germoni)

Friday, November 8, 1996, 15:00 c.t., V2-210
G. Röhrle (Bielefeld)
On parabolic subgroups of classical groups with a finite number of orbits on the unipotent radical, I
Friday, November 15, 1996, 13:00 s.t., V2-210
L. Hille (Chemnitz)
On parabolic subgroups of classical groups with a finite number of orbits on the unipotent radical, II
Friday, November 15, 1996, 14:00 s.t., V2-210
D. Vossieck (UNAM/Bielefeld)
Matrix finite bimodules over pairs of local algebras
Friday, November 15, 1996, 15:00 c.t., V2-210
H. Asashiba (Osaka/Bielefeld)
Quivers and relations for SL(2,2^n) in characteristic 2
(on work of H. Koshita)

Friday, November 22, 1996, 13:00 c.t., V2-210
H. Krause (Bielefeld)
On the dimension of some irreducible representations of the symmetric group
(on work of O. Mathieu)

Friday, November 22, 1996, 15:00 c.t., V2-210
Oe. Solberg (Trondheim/Bielefeld)
Testing simplicity of modules over artin algebras
Wednesday, November 27, 1996, 10:00 c.t., V3-212
L. Willaert (Antwerp)
A scheme-like geometry for noncommutative algebras
Friday, December 6, 1996, 13:00 c.t., V2-210
K. Bremke (Bielefeld)
Hecke algebras at roots of unity and crystal bases of quantum affine algebras
(on work of Lascoux, Leclerc, Thibon; Ariki)

Friday, December 6, 1996, 15:00 c.t., V2-210
K. Bremke (Bielefeld)
Hecke algebras at roots of unity and crystal bases of quantum affine algebras II
(on work of Lascoux, Leclerc, Thibon; Ariki)

Wednesday, December 11, 1996, 10:00 c.t., V3-212
H. Krause (Bielefeld)
Derived equivalences and representation type
Wednesday, December 18, 1996, 10:00 c.t., V3-212
V. Bekkert (Kiev/Bielefeld)
Sincere vector space categories of polynomial growth
Wednesday, January 8, 1997, 10:00 c.t., V3-212
V. Bekkert (Kiev/Bielefeld)
On the Auslander-Reiten quiver of string vector space categories
Thursday, January 9, 1997, 15:00 c.t., V3-212
V. Mazorchuk (Kiev/Bielefeld)
Incidence algebras associated with regular cell decompositions of S^n
Friday, January 10, 1997, 15:45, V2-210
A. Mathas (London)
Modular representations of Hecke algebras
Wednesday, January 15, 1997, 16:30, V3-212
V. Mazorchuk (Kiev/Bielefeld)
Highest weight categories of Lie algebra modules
Wednesday, January 15, 1997, 18:00, V3-212
A. Verschoren (Antwerp)
Saltman's Theorem and Brauer groups of Krull domains
Thursday, January 16, 1997, 13:00 c.t., V3-212
A. Mathas (London)
The Ariki-Koike algebras
Friday, January 17, 1997, 13:00 c.t., V2-210
V. Mazorchuk (Kiev/Bielefeld)
Induced Gelfand-Zetlin modules
Friday, January 17, 1997, 15:00 c.t., V2-210
M. Schmidmeier (Prag/Bielefeld)
On the additivity of local duality
Wednesday, January 22, 1997, 9:30, V3-212
K. Bremke (Bielefeld)
q-Schur algebras, I
Wednesday, January 22, 1997, 10:00 c.t., V3-212
K. Bremke (Bielefeld)
q-Schur algebras, II
Thursday, January 23, 1997, 13:00 c.t., V3-212
F. Huard (Sherbrooke/Bielefeld)
Tilted gentle algebras
Friday, January 31, 1997, 13:00, V2-210
G. Zwara (Torun/Bielefeld)
Degenerations for modules over representation-finite biserial algebras
Friday, January 31, 1997, 15:00, V2-210
G. Zwara (Torun/Bielefeld)
Degenerations for representations of quivers
Friday, February 7, 1997, 15:00, V2-210
J. Schröer (Bielefeld)
Hammocks for string algebras I
Wednesday, February 12, 1997, 10:00, V3-212
J. Schröer (Bielefeld)
Hammocks for string algebras II
Monday, February 17, 1997, 10:00, V6-144
D. Green (Essen/Bielefeld)
Path algebras and projective resolutions
(on work of E. Green and Feustel)
Wednesday, February 19, 1997, 11:00 s.t., V6-144
T. Brüstle (Bielefeld)
The representation type of Schur algebras
(on work of Doty, Erdmann, Stuart, Nakano)

Wednesday, February 26, 1997, 9:00 c.t., V6-144
V. Petrogradsky (Ulyanovsk/Bielefeld)
On the gap for Gelfand-Kirillov dimensions and graphs
(on work of Bergman, Ufnarovski et.al.)

Wednesday, February 26, 1997, 10:45, V6-144
H. Asashiba (Osaka/Bielefeld)
The derived equivalence classification of representation-finite selfinjective standard algebras
Wednesday, March 5, 1997, 10:00 c.t., V6-144
J. Schröer (Bielefeld)
Hammocks for string algebras I
Wednesday, February 12, 1997, 10:00, V3-212
J. Schröer (Bielefeld)
Hammocks for string algebras II
Monday, February 17, 1997, 10:00, V6-144
D. Green (Essen/Bielefeld)
Path algebras and projective resolutions
(on work of E. Green and Feustel)
Wednesday, February 19, 1997, 11:00 s.t., V6-144
T. Brüstle (Bielefeld)
The representation type of Schur algebras
(on work of Doty, Erdmann, Stuart, Nakano)

Wednesday, February 26, 1997, 9:00 c.t., V6-144
V. Petrogradsky (Ulyanovsk/Bielefeld)
On the gap for Gelfand-Kirillov dimensions and graphs
(on work of Bergman, Ufnarovski et.al.)

Wednesday, February 26, 1997, 10:45, V6-144
H. Asashiba (Osaka/Bielefeld)
The derived equivalence classification of representation-finite selfinjective standard algebras
Wednesday, March 5, 1997, 10:00 c.t., V6-144
S. Schwede (Bielefeld)
An exact sequence interpretation of the Lie bracket in Hochschild cohomology
Friday, April 25, 1997, 13:00 c.t., V2-222
M. Barot (UNAM/Paderborn)
Multipartition of the repetitive algebra of a tubular algebra
Friday, April 25, 1997, 15:00 c.t., V2-222
A. Mathas (Bielefeld)
Canonical bases and Ariki-Koike Hecke algebras
Friday, May 2, 1997, 13:00 c.t., V2-222
Xi Nanhua (Beijing/Bielefeld)
Affine Hecke algebras
Friday, May 2, 1997, 15:00 c.t., V2-222
R. Bautista (UNAM/Bielefeld)
Relations between mod-A and mod-A(X)
Wednesday, May 21, 1997, 14:00 c.t., U5-135
C. Geiss (UNAM/Bielefeld)
Morphisms between representations of clans, I
Thursday, May 22, 1997, 16:00 c.t., V3-217
C. Geiss (UNAM/Bielefeld)
Morphisms between representations of clans, II
Tuesday, May 27, 1997, 11:00 c.t., V3-212
C. Geiss (UNAM/Bielefeld)
Morphisms between representations of clans, III
Wednesday, May 28, 1997, 10:00 c.t., V3-212
P. Pyatov (Dubna)
Representations of Hecke algebras of type A_n
(An approach using the Jucys-Murphy elements)
Tuesday, June 10, 1997, 16:00 c.t., V3-212
P. Pyatov (Dubna)
Representations of Hecke algebras of type B_n, D_n
Wednesday, June 11, 1997, 16:00 c.t., U5-135
F. Luca (Syracuse)
Prime Ideals of a Green Functor
Wednesday, June 11, 1997, 17:30, U5-135
A. Mathas (Bielefeld)
Hecke algebras and Schur algebras I
Monday, June 16, 1997, 14:00 c.t., V3-212
A. Rudakov (Moscow/Trondheim/Bielefeld)
Power series and formal distributions:
Wick product and operator product expansion

Tuesday, June 17, 1997, 14:00 c.t., U5-135
A. Mathas (Bielefeld)
Hecke algebras and Schur algebras II
Tuesday, June 17, 1997, 16:00 c.t., V3-212
P. Symonds (Manchester)
The quotient space of the p-subgroup complex is contractible
Thursday, June 19, 1997, 14:00 c.t., V3-212
A. Mathas (Bielefeld)
Hecke algebras and Schur algebras III
Thursday, June 19, 1997, 16:00 c.t., U2-232
A. Rudakov (Moscow/Trondheim/Bielefeld)
Lie algebras of formal distributions and conformal algebras:
algebraic use of operator product expansion

Friday, June 20, 1997, 13:00 c.t., V2-222
A. Rudakov (Moscow/Trondheim/Bielefeld)
Algebraic use of operator product expansion, II
Monday, June 23, 1997, 14:00 c.t., U5-135
V. Petrogradsky (Moscow/Bielefeld)
Two scales for growth of Lie algebras
Tuesday, June 24, 1997, 16:00 c.t., V3-212
A. Rudakov (Moscow/Trondheim/Bielefeld)
Vertex algebras
Friday, June 27, 1997, 13:00 c.t., V2-222
A. Mathas (Bielefeld)
The q-Schur algebras
Friday, August 1, 1997, 10:00 c.t., V6-144
A. Mathas (Bielefeld)
The Jantzen-Schaper Theorem
Monday, August 4, 1997, 10:00 c.t., V6-144
A. Mathas (Bielefeld)
The cyclotomic q-Schur algebra
Wednesday, August 6, 1997, 10:00 c.t., V6-144
V. Bekkert (Kiev/Bielefeld)
Cycle-finite schurian vector space categories
Friday, August 22, 1997, 10:00 c.t., V6-144
H. Asashiba (Osaka/Bielefeld)
Derived equivalence classification of representation-finite self-injective algebras
Monday, September 1, 1997, 15:00 c.t., V6-144
T. Brüstle (Bielefeld)
On the orbits of parabolics on their unipotent radical
Monday, September 15, 1997, 9:30, V6-144
H. Krause (Bielefeld)
Extensions of simple functors I (on work of Piriou and Schwartz)
Monday, September 15, 1997, 10:45, V6-144
A. Mathas (Bielefeld)
Extensions of simple functors II (on work of Piriou and Schwartz)
Monday, September 15, 1997, 11:30, V6-144
M. Lehn (Göttingen)
Towards the cohomology ring of a Hilbert scheme
Monday, September 15, 1997, 13:30, V6-144
H. Nakajima (Kyoto)
Homology of Quot-schemes on surfaces
Monday, September 15, 1997, 15:00 s.t., V6-144
W. Crawley-Boevey (Leeds)
Localization for deformed preprojective algebras
Monday, September 15, 1997, 16:30 s.t., V6-144
A. Mathas (Bielefeld)
Symmetric cyclotomic Hecke algebras
Friday, September 19, 1997, 15:00 c.t., V6-144
J. Schröer (Bielefeld)
Tilting gentle algebras
Friday, September 19, 1997, 16:30 c.t., V6-144
S. Ovsienko (Kiev/Bielefeld)
Trees with relations and additions
Thursday, October 2, 1997, 15:00 c.t., V6-144
S. Ovsienko (Kiev/Bielefeld)
Some examples of integral bimodule problems
Thursday, October 9, 1997, 15:00 c.t., V6-144
I. Gordon (Glasgow/Bielefeld)
Representations of quantized function algebras at roots of unity
Wednesday, October 15, 1997, 13:00 c.t., V4-119
A. Marcus (Cluj/Bielefeld)
Equivalences for group-graded algebras
Wednesday, October 15, 1997, 15:00 c.t., V4-119
W. Wheeler (Athens/Bielefeld)
Direct sum decompositions of infinitely generated modules
Wednesday, October 15, 1997, 17:00 c.t., V4-119
S. König (Bielefeld)
Hall algebras I: Introduction
Friday, October 24, 1997, 13:00 c.t., V2-228
J. Schröer (Bielefeld)
Hall algebras II: LR-sequences
Friday, October 24, 1997, 15:00 c.t., V2-228
R. Martinez-Villa (UNAM Mexico/Paderborn)
Koszul self-injective algebras
Tuesday, October 28, 1997, 16:00 c.t., V6-144
P.N. Anh (Budapest/Bielefeld)
Hall algebras III: Existence of Hall polynomials
Thursday, October 30, 1997, 14:00 c.t., U2-205
D. Guhe (Bielefeld)
Hall algebras IV: Hall-Littlewood polynomials
Thursday, November 6, 1997, 14:00 c.t., V4-116
Th. Brüstle (Bielefeld)
Hall algebras V: The algebra of symmetric functions
Thursday, November 13, 1997, 14:00 c.t., V4-116
R. Nörenberg (Bielefeld)
Hall algebras VI: Hall algebras for finitary rings I
Friday, November 14, 1997, 13:00 c.t., V2-228
St. König (Bielefeld)
Hall algebras VII: Hall algebras for finitary rings II
Friday, November 14, 1997, 15:00 c.t., V2-228
P.N. Anh (Budapest/Bielefeld)
Hall algebras VIII: Loewy series and the fundamental relations
Friday, November 21, 1997, 13:00 c.t., V2-228
B. Deng (Beijing/Bielefeld)
Hall algebras IX: Twisted Hall algebras
Friday, November 21, 1997, 15:00 c.t., V2-228
J. Schröer (Bielefeld)
Hall algebras X: Twisted Hall algebras and quantum groups
Thursday, November 27, 1997, 14:00 c.t., V4-116
D. Guhe (Bielefeld)
Hall algebras XI: Examples of canonical bases
Friday, November 28, 1997, 13:00 c.t., V2-228
Th. Brüstle (Bielefeld)
Hall algebras XIII: Green's formula
Wednesday, December 3, 1997, 14:00 c.t., V4-119
St. König (Bielefeld)
Hall algebras XII: Canonical bases
Friday, December 5, 1997, 13:00 c.t., V4-119
K. Erdmann (Oxford)
On quasi-hereditary algebras with duality
Friday, December 5, 1997, 15:00 c.t., V4-119
B.M. Deng (Beijing/Bielefeld)
Hall algebras XIV: Comultiplication
Friday, December 12, 1997, 13:00 c.t., V2-228
Th. Brüstle (Bielefeld)
Hall algebras XV: The composition algebra
Friday, December 12, 1997, 15:00 c.t., V2-228
J. Schröer (Bielefeld)
The Krull-Gabriel dimension of an algebra
Friday, December 19, 1997, 10:00 c.t., V3-212
S. König (Bielefeld)
Hall algebras XVI: Quantized shuffles
Thursday, January 8, 1998, 14:00 c.t., V4-116
S. König (Bielefeld)
Hall algebras XVII: Composition algebras and quantum groups
Friday, January 9, 1998, 13:00 c.t., V2-228
G. Röhrle (Bielefeld)
Hall algebras XVIII: Symmetric functions and general linear groups - a survey
Friday, January 9, 1998, 15:45, V2-228
M. Künzer (Bielefeld)
A generic morphism between Specht modules
Wednesday, January 21, 1998, 16:00 c.t., V4-119
G. Michler (Essen)
A new existence proof of Janko's simple group J_4
Friday, January 23, 1998, 10:00 c.t., V6-144
M. Klucznik (Boston/Bielefeld)
Projective resolutions of Weyl modules
Friday, January 23, 1998, 15:30, V2-228
M. Klucznik (Boston/Bielefeld)
Projective resolutions of Weyl modules, II
Wednesday, January 28, 1998, 15:00 c.t., V4-119
P. Dräxler (Bielefeld)
Hall algebras IXX: On the coloured graph structure of Lusztigs canonical basis (on work of Reineke)
Wednesday, January 28, 1998, 16:00 c.t., V4-119
G. Röhrle (Bielefeld)
Hall algebras XX: The characters of GL_n(q); the characteristic map
Friday, January 30, 1998, 13:00 c.t., V2-228
C.M Ringel (Bielefeld)
Hall algebras XXI: Hall polynomials
Friday, January 30, 1998, 15:30, V2-228
G. Zwara (Torun/Bielefeld)
Algebraic descriptions of degenerations of finite dimensional modules
Wednesday, February 4, 1998, 14:00 c.t., V4-119
P. Dräxler (Bielefeld)
Hall algebras XXII: On the coloured graph structure of Lusztigs canonical basis (on work of Reineke), II
Wednesday, February 4, 1998, 16:00 c.t., V4-119
S. König (Bielefeld)
Hall algebras XXIII: Construction of the characters of GL_n(q)
Thursday, February 5, 1998, 14:00 c.t., V4-116 DT>G. Zwara (Torun/Bielefeld)
Algebraic descriptions of degenerations of finite dimensional modules, II
Wednesday, February 11, 1998, 16:00 c.t., V4-119
G. Röhrle (Bielefeld)
Hall algebras XXV: Examples of character tables of GL_n(q), Hall polynomials and Green polynomials
Friday, February 13, 1998, 16:00 s.t., V2-228
M. Schmidmeier (Prag/Bielefeld)
Three types of diagrams given by artin algebras
Wednesday, February 18, 1998, 15:00 c.t., V4-119
M. Klucznik (Boston/Bielefeld)
Projective resolutions of Weyl modules, III
Wednesday, February 18, 1998, 16:00 c.t., V4-119
L. Hille (Hamburg)
Actions of Algebraic Groups, Representation Theory and Degenerations
Wednesday, February 25, 1998, 14:00 s.t., V4-119
M. Reineke (Wuppertal)
Generic extensions and Hall algebras at q=0
Wednesday, February 25, 1998, 15:30, V4-119
T. Brüstle (Bielefeld)
Characters of GL(n,F_q) and Hopf algebras
(on work of A.V. Zelevinsky)
Wednesday, February 25, 1998, 17:00 s.t., V4-119
A. Schofield (Bristol/Bielefeld)
Ore localisation in module categories
Friday, February 27, 1998, 11:00 s.t., V6-144
A. Schofield (Bristol/Bielefeld)
Finite-dimensional representations of free products of finite groups
Monday, March 2, 1998, 17:00 c.t., V6-144
A. Schofield (Bristol/Bielefeld)
Ore localisation to universal localisation
Wednesday, March 11, 1998, 14:00 c.t., V6-144
S. König (Bielefeld)
Stratification of categories I: Introduction
Friday, April 24, 1998, 12:30, V2-228
C.M. Ringel (Bielefeld)
Stratification of categories II:
The 14 functors for a Serre subcategory
Friday, April 24, 1998, 16:00 s.t., V2-228
S. König (Bielefeld)
Intersection cohomology I: Introduction
Tuesday, April 28, 1998, 14:00 c.t., V4-114
J. Schröer (Bielefeld)
Intersection cohomology II: Examples
Tuesday, May 5, 1998, 16:00 c.t., V2-216
L. Hille (Hamburg)
An invitation to a seminar on geometry of quivers.
Friday, May 8, 1998, 13:00 c.t., V2-228
P.N. Anh (Budapest/Bielefeld)
Stratification of categories III: Recollements and t-structures
Friday, May 8, 1998, 14:00 c.t., V2-228
M. Koreuber (Berlin)
Zur Geschichte eines strukturellen Zugangs zur Mathematik -
Die Bedeutung der Noether Schule
Friday, May 8, 1998, 16:00 s.t., V2-228
S. Ovsienko (Kiew/Bielefeld)
Intersection cohomology III: More examples
Tuesday, May 12, 1998, 16:00 c.t., V2-216
Ch. Mercat (Strasbourg)
Discrete holomorphy
Friday, May 15, 1998, 11:00 s.t., V4-119
M. Klucznik (Boston/Bielefeld)
Stratification of categories IV: Perverse sheaves
Friday, May 15, 1998, 13:00 c.t., V2-228
H. Krause (Bielefeld)
Stratification of categories V: Verdier duality
Friday, May 15, 1998, 15:00 c.t., V2-228
S. Ovsienko (Kiew/Bielefeld)
Intersection cohomology IV: The sheaf IC
Tuesday, May 19, 1998, 16:00 c.t., V2-216
M. Nüsken (Konstanz)
Eindeutige Tensorzerlegung von Algebren
Friday, May 22, 1998, 11:00 s.t., V4-119
M. Künzer (Bielefeld)
Stratification of categories VI:
Perverse sheaves on a triangulated space - an overview

Friday, May 22, 1998, 13:00 c.t., V2-228
B.M. Deng (Beijing/Bielefeld)
Stratification of categories VII:
Perverse sheaves on a triangulated space - proofs

Friday, May 22, 1998, 15:00 c.t., V2-228
S. Ovsienko (Kiew/Bielefeld)
Intersection cohomology V: The sheaf IC, II
Tuesday, May 26, 1998, 16:00 c.t., V2-216
S. Ovsienko (Kiew/Bielefeld), J. Schröer (Bielefeld)
Stratification of categories VIII:
Glueing of module categories

Friday, May 29, 1998, 13:00 c.t., V2-228
B.M. Deng (Bejing/Bielefeld), M. Künzer (Bielefeld)
Stratification of categories IX:
Perverse sheaves on a triangulated space - proofs II

Friday, May 29, 1998, 15:00 c.t., V2-228
R. Brussee (Bielefeld)
Intersection cohomology VI:
The Riemann-Hilbert correspondence

Tuesday, June 16, 1998, 16:00 c.t., V2-216
T. Brüstle (Bielefeld)
On E_6-free trees
Tuesday, June 23, 1998, 14:00 s.t., V2-216
B. Sevenhant (Bielefeld)
Computer evidence for some conjectures of Kac
Tuesday, June 23, 1998, 15:00 c.t., V2-216
R. Brussee (Bielefeld)
Intersection cohomology VII:
The Riemann-Hilbert correspondence II

Tuesday, June 23, 1998, 16:30, V2-216
A. Elashvili (Tbilisi/Bielefeld)
Hermite reciprocity for the regular representations of cyclic groups
Friday, June 26, 1998, 11:00 s.t., V4-119
R. Farnsteiner (Milwaukee/Bielefeld)
Representations of finite algebraic groups
Friday, June 26, 1998, 13:00 c.t., V2-228
J. Klein (Bielefeld)
Intersection cohomology VIII:
Brown representability and Grothendieck duality

Tuesday, June 30, 1998, 16:00 c.t., V2-216
A. Beligiannis (Bielefeld)
Pure global dimension in triangulated categories
Friday, July 24, 13.30 - 14.30, V2-228
H. Krause (Bielefeld)
On the existence of Auslander-Reiten triangles
Friday, July 24, 14.45 - 15.30, V2-228
B. Keller (Paris VII/Bielefeld)
On the cyclic homology of ringed spaces and schemes,
Friday, July 24, 16.00 - 17.00, V2-228
B. Keller (Paris VII/Bielefeld)
On tilting complexes and $A_\infty$-algebras
Friday, July 31, 1998, 14:00 c.t., V6-144
S. Schwede (Bielefeld)
A topologist's approach to tilting theory
Friday, July 31, 1998, 15:45, V6-144
Zongzhu Lin (Kansas)
Vertex operator algebras, from an algebraist's point of view
Wednesday, August 12, 1998, 15:00 s.t., V6-144
T. Albu (Ohio State+Bucharest/Bielefeld)
Global (dual) Krull dimension
Wednesday, August 12, 1998, 16:30, V6-144
C. Geiss (UNAM/Bielefeld)
Auslander-Reiten components of clans, I
Friday, August 14, 1998, 15:00 s.t., V6-144
H. Asashiba (Osaka/Bielefeld)
On a method of inducing derived equivalences from stable equivalences (of Morita type)
Friday, August 14, 1998, 16:30, V6-144
C. Geiss (UNAM/Bielefeld)
Auslander-Reiten components of clans, II
Wednesday, August 19, 1998, 15:00 s.t., V6-144
C. Xi (Beijing/Bielefeld)
Partition algebras are cellular
Wednesday, August 19, 1998, 16:30, V6-144
A. Kleshchev (Oregon/Bielefeld)
On tensoring simple modules of symmetric groups with the sign representation
Tuesday, September 15, 1998, 16:00 c.t., V6-144
I. Reiten (Trondheim/Bielefeld)
Grothendieck groups and tilting objects for hereditary categories
Friday, October 23, 1998, 15:00 c.t., V2-216
V. Mazorchuk (Kiev/Bielefeld)
Shapavalov form for generalized Verma modules
Friday, October 30, 1998, 15:00 c.t., V2-216
R. Wiegandt (Budapest)
Compactness in categories and interpretations
Thursday, November 5, 1998, 14:00 c.t., V3-212
A. Cox (Oxford)
Delta-infinite q-Schur algebras
Thursday, November 5, 1998, 16:00 c.t., V3-212
I. Slungård (Trondheim/Bielefeld)
Quasitilted one-point extensions of decomposable hereditary algebras
Friday, November 13, 1998, 13:00 c.t., V2-216
A. Skowronski (Torun/Bielefeld)
Strongly simply connected algebras of polynomial growth
Friday, November 13, 1998, 15:00 c.t., V2-216
A. Skowronski (Torun/Bielefeld)
Geometric and homological characterisations of polynomial growth strongly simply connected algebras
Friday, November 20, 1998, 15:00 c.t., V2-216
R. Nörenberg (Bielefeld)
Start modules for algebras with directed quivers
Friday, November 27, 1998, 13:00 c.t., V2-216
A. Skowronski (Torun/Bielefeld)
Strongly simply connected algebras of polynomial growth II (Outline of proofs)
Friday, November 27, 1998, 15:00 c.t., V2-216
L. Angeleri-Hügel (München)
Direct summands of products
Thursday, December 3, 1998, 16:00 s.t., V6-144
B. Zhu (Beijing/Bielefeld)
A combinatorial description of complete coils
Thursday, December 3, 1998, 17:00 c.t., V6-144
V. Sergeichuk (Kiev/Bielefeld)
Canonical matrices for linear matrix problems
Thursday, December 10, 1998, 16:00 s.t., V6-144
A. Skowronski (Torun/Bielefeld)
Tame algebras with simply connected Galois coverings
Friday, December 11, 1998, 13:00 c.t., V2-216
V. Sergeichuk (Kiev/Bielefeld)
Classification problems for systems of forms and linear mappings
Friday , December 11, 1998, 15:00 c.t., V2-216
D. Vossieck (UNAM)
The algebras with "discrete" derived categories
Wednesday, December 16, 1998, 16:00 c.t., V4-122
C. Geiss (UNAM/Bielefeld)
Tree algebras with non-negative Euler form
Friday, December 18, 1998, 15:00 c.t., V2-216
V. Mazorchuk (Kiew/Bielefeld)
Classification of simple dense modules (on work of O. Mathieu)
Friday, January 29, 1999, 13:00 c.t., V2-216
M. Künzer (Bielefeld)
Coherent functors I
(on work of R. Hartshorne)

Friday, January 29, 1999, 15:00 c.t., V2-216
G. Bobinski (Torun/Bielefeld)
Geometry of directing modules over tame algebras
Friday, February 5, 1999, 13:00 c.t., V2-216
I. Slungård (Trondheim/Bielefeld)
Coherent functors II
(on work of R. Hartshorne)

Friday, February 5, 1999, 15:00 c.t., V2-216
A. Beligiannis (Bielefeld)
Coherent functors III
Friday, February 12, 1999, 9:30, V4-112
H. Reich (Göttingen)
Group von Neumann algebras
Friday, February 12, 1999, 13:00 s.t., V2-216
R. Brussee (Bielefeld)
Coherent functors IV
Friday, February 12, 1999, 14:00 c.t., V2-216
R. Dipper (Stuttgart)
Constructing q-tensor space in the group algebra of finite general linear groups
Tuesday, February 16, 1999, 11:00 c.t., V6-144
M. Klucznik (Bielefeld)
Ainfinity categories in representation theory, I
Wednesday, March 3, 1999, 15:00 c.t., V6-144
A. Cox (Bielefeld)
On infinitesimal Schur algebras
Wednesday, March 10, 1999, 14:00 s.t., V6-144
M. Klucznik (Bielefeld)
A_\infty categories in representation theory, II
Wednesday, March 10, 1999, 15:30, V6-144
M. Klucznik (Bielefeld)
A_\infty categories in representation theory, III
Friday, March 12, 1999, 14:30, V6-144
P. Dräxler (Bielefeld)
Preprojective algebras, I
Friday, April 9, 1999, 15:00 c.t., V2-216
B. Deng (Bielefeld)
Preprojective algebras, II
Friday, April 16, 1999, 15:00 c.t., V2-216
M. Klucznik (Bielefeld)
On SuperSchur algebras
Friday, April 23, 1999, 13:00 c.t., V2-216
C.M. Ringel (Bielefeld)
Preprojective algebras, III
Friday, April 23, 1999, 15:00 c.t., V2-216
V. Mazorchuk (Kiev/Bielefeld)
Generalization of O and projectively stratified algebras
Friday, April 30, 1999, 13:00 c.t., V2-216
V. Mazorchuk (Kiev/Bielefeld)
Combinatorics of {\cal O}(p,A), induction from sl(2) case
Friday, May 7, 1999, 13:00 c.t., V2-216
C.M. Ringel (Bielefeld)
Preprojective algebras, IV
Friday, May 7, 1999, 15:00 c.t., V2-216
J. Ye (Shanghai/Bielefeld)
Irreducible Characters and extensions of simple modules
Friday, May 14, 1999, 15:00 c.t., V2-216
C.M. Ringel (Bielefeld)
Preprojective algebras, V: Quiver varieties (after G. Lusztig)
Monday, May 17, 1999, 16:00 c.t., V2-216
A. Beineke (Bielefeld)
Zahm verkleidete quasi-erbliche Algebren
Friday, May 21, 1999, 13:00 c.t., V2-216
S. Koshitani (Chiba/Essen)
Donovan's conjecture for blocks of finite groups
Friday, June 4, 1999, 13:00 s.t., V2-216
J. Guo (Changsha/Bielefeld)
PBW bases of composition algebras of type A~n
Friday, June 4, 1999, 14:30, V2-216
T. Brüstle (Bielefeld)
Ainfinity-categories and filtered modules
Friday, June 4, 1999, 16:00 s.t., V2-216
M. Domokos (Budapest/Paderborn)
Semi-invariants of quivers as determinants
Monday, June 14, 1999, 16:00 c.t., V4-116
G. D'Este (Milano)
Free modules obtained by means of infinite direct products
Friday, June 25, 1999, 14:30 s.t., V2-216
R. Nörenberg (Bielefeld)
Quiver representations and computers
Friday, June 25, 1999, 16:00 s.t., V2-216
J. Guo (Changsha/Bielefeld)
Computing the canonical basis of quantum groups of type An via Hall algebras
Friday, July 9, 1999, 13:00 c.t., V6-144
S. Doty (Chicago/Bielefeld)
Generalizations of Schur algebras, I
Thursday, August 12, 1999, 14:00 c.t., V6-144
C. Geiss (UNAM/Bielefeld)
Derived tame tree algebras, I
Thursday, August 12, 1999, 16:00 c.t., V6-144
S. Doty (Chicago/Bielefeld)
Generalizations of Schur algebras, II
Friday, August 13, 1999, 14:00 c.t., V6-144
C. Geiss (UNAM/Bielefeld)
Derived tame tree algebras, II
Friday, August 13, 1999, 15:45, V6-144
T. Brüstle (Bielefeld)
Derived tame tree algebras, a second approach
Friday, August 13, 1999, 17:00 s.t., V6-144
A.V. Zelevinsky (Boston/Bielefeld)
Tensor product multiplicities
Tuesday, August 17, 1999, 14:00 c.t., V6-144
S. Doty (Chicago/Bielefeld)
Generalizations of Schur algebras, III
Tuesday, August 17, 1999, 16:00 c.t., V6-144
A.V. Zelevinsky (Boston/Bielefeld)
Introduction to total positivity, I
Wednesday, August 18, 1999, 16:30, V6-144
A.V. Zelevinsky (Boston/Bielefeld)
Introduction to total positivity, II
Thursday, August 19, 1999, 14:00 c.t., V6-144
K. Erdmann (Oxford/Bielefeld)
Delta-good modules for Schur algebras
Thursday, August 19, 1999, 16:00 c.t., V6-144
J.A. Green (Oxford/Bielefeld)
Quantum shuffle algebras, I
Tuesday, August 31, 1999, 14:00 c.t., V6-144
J.A. Green (Oxford/Bielefeld)
Quantum shuffle algebras, II
Wednesday, September 1, 1999, 14:00 c.t., V6-144
J. Du (New South Wales/Bielefeld)
Stratifying generalized q-Schur algebras
Friday, September 10, 1999, 13:00 s.t., V6-144
C. Xi (Beijing/Bielefeld)
Representation dimension
Friday, September 10, 1999, 14:30, V6-144
A. Buan (Trondheim/Bielefeld)
Relative derived categories
Friday, September 10, 1999, 16:00 s.t., V6-144
M. Barot (UNAM/Paderborn)
A characterization of positive unit forms
Friday, September 24, 1999, 12:30, V6-144
H. Asashiba (Osaka/Bielefeld)
All stable equivalences of representation-finite standard selfinjective algebras are of Morita type
Friday, September 24, 1999, 14:00 s.t., V6-144
M. Barot (UNAM/Paderborn)
Subfinite canonical algebras
Friday, September 24, 1999, 15:30, V6-144
H. Nagase (Osaka/Bielefeld)
Questions about non-strictly wild algebras
Friday, September 24, 1999, 17:00 s.t., V6-144
N. Richmond (Leeds/Bielefeld)
A stratification for the variety of modules and applications
Friday, October 15, 1999, 13 c.t., V2-216
V. Mazorchuk (Kiev/Bielefeld)
Projectively stratified algebras with parabolic decomposition
Friday, October 15, 1999, 15 c.t., V2-216
A. Krause (Bielefeld)
DG categories and homotopy categories (Deriving DG categories, I)
Wednesday, October 27, 1999, 14:00, V2-200
I. Gordon (Glasgow/Bielefeld)
Resolutions (Deriving DG categories, II)
Friday, October 29, 1999, 13 c.t., V2-216
V. Mazorchuk (Kiev/Bielefeld)
Complete modules having a quasi Verma flag in the category O
Friday, October 29, 1999, 15 c.t., V2-216
H. Asashiba (Osaka/Bielefeld)
Derived categories and stable categories (Deriving DG categories, III)
Wednesday, November 3, 1999, 14:00, V2-200
M. Brun (Aarhus/Bielefeld)
Small objects (Deriving DG categories, IV)
Friday, November 5, 1999, 13:00, V2-216
P. Anh (Budapest/Bielefeld)
Antiisomorphisms of the submodule lattice
Friday, November 5, 1999, 15:00, V2-216
D. Madsen (Trondheim/Bielefeld)
Standard functors (Deriving DG categories, V)
Wednesday, November 10, 1999, 14:00, T2-228
A. Buan (Trondheim/Bielefeld)
Quasi functors and lifts (Deriving DG categories, VI)
Friday, November 12, 1999, 13:00, V2-216
H. Nagase (Osaka/Bielefeld)
Applications: Derived equivalences and stalk categories (Deriving DG categories, VII)
Friday, November 19, 1999, 13:00, V2-216
A. Zavadskij (Kiev/Bielefeld)
Tame equipped posets
Friday, November 19, 1999, 15:00, V2-216
V. Mazorchuk (Kiev/Bielefeld)
Application: Koszul duality (Deriving DG categories, VIII)
Wednesday, November 24, 1999, 14:00, T2-228
D. Isaksen (Aarhus/Bielefeld)
Deriving DG categories via model categories (Deriving DG categories, IX)
Friday, November 26, 1999, 13:00, V2-216
V. Mazorchuk (Kiev/Bielefeld)
A simplicity criterion for arbitrary generalized Verma module induced from sl(2)
Friday, November 26, 1999, 15:00, V2-216
V. Sergeichuk (Kiev/Bielefeld)
Tame and wild matrix problems, I
Wednesday, December 1, 1999, 16:00 c.t., V3-212
V. Bondarenko (Kiev/Bielefeld)
A new algorithm for representations of a bundle of semichains
Friday, December 3, 1999, 14:30, V2-216
D. Madsen (Trondheim/Bielefeld)
Homological properties of almost split sequences
Friday, December 3, 1999, 16:00 s.t., V2-216
V. Bondarenko (Kiev/Bielefeld)
Linear operators on finite-dimensional S-spaces
Wednesday, December 8, 1999, 14:00 c.t., T2-228
V. Sergeichuk (Kiev/Bielefeld)
Tame and wild matrix problems, II
Wednesday, December 8, 1999, 16:00 c.t., V2-216
A. Buan (Trondheim/Bielefeld) S
Subcategories of the derived category and cotilting
Wednesday, December 8, 1999, 17:30, V2-216
Y. Samoilenko (Kiev/Bonn)
Representations of algebras and *-algebras generated by idempotents
Friday, December 10, 1999, 13:00 s.t., V2-216
V. Sergeichuk (Kiev/Bielefeld)
Tame and wild matrix problems, III
Friday, December 10, 1999, 14:30, V2-216
K. Waki (Hirosaki/Bielefeld)
Path algebras in Gap
Friday, December 10, 1999, 16:00 s.t., V2-216
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, I
Wednesday, January 12, 2000, 14:00 c.t., T2-228
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, II
Friday, January 14, 2000, 13:00 c.t., V2-216
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, III
Wednesday, January 19, 2000, 14:00 c.t., T2-228
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, IV
Friday, January 21, 2000, 13:00 c.t., V2-216
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, VI
Wednesday, February 2, 2000, 14:00 c.t., T2-228
H.-G. Carstens (Bielefeld)
Shor's factorization algorithm
Friday, February 4, 2000, 13:00 c.t., V2-216
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, VII
Friday, February 4, 2000, 15:00 c.t., V2-216
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, VIII
Wednesday, February 9, 2000, 14:00 c.t., T2-228
S. Schwede (Bielefeld)
Derived equivalences via model categorie
Wednesday, February 9, 2000, 18:00 c.t., V4-119
A. Holtmann (Bielefeld)
Unterraumendliche Dimensionsvektoren sternförmiger Köcher
Friday, February 11, 2000, 13:00 c.t., V2-216
R. Farnsteiner (Milwaukee/Bielefeld)
Geometric representation theory of Hopf algebras, IX
Friday, February 11, 2000, 15:00 c.t., V2-216
D. Vossieck (UNAM/Bielefeld)
Affine representations of quivers
Tuesday, February 29, 2000, 15:00 c.t., V6-144
C.M. Ringel (Bielefeld)
Indecomposable algebraically compact modules for string algebras
Tuesday, February 29, 2000, 16:30, V6-144
Pu Zhang (Hefei/Bielefeld)
Ringel-Hall algebra of a tame quiver
Thursday, March 2, 2000, 15:00 c.t., V6-144
D. Vossieck (UNAM/Bielefeld)
Affine representations of quivers, II
Tuesday, March 7, 2000, 15:00 c.t., V6-144
Yingbo Zhang (BNU/Bielefeld)
A correspondence of almost split sequences between representation categories
Tuesday, March 7, 2000, 16:30, V6-144
J. Ponizovskii (St Petersburg/Bielefeld)
Matrix representations of semigroups. A survey
Wednesday, April 19, 2000, 16:00 c.t., V4-122
Yu. Drozd (Bonn/Bielefeld)
On coverings of tame boxes and algebras, I
Wednesday, May 3, 2000, 16:00 c.t., U2-232
Yu. Drozd (Bonn/Bielefeld)
On coverings of tame boxes and algebras, II
Thursday, May 4, 2000, 16:00 c.t., V2-216
P. Dräxler (Bielefeld)
Cleaving functors and controlled wild algebras
Thursday, May 4, 2000, 17:30, V2-216
A. Makhlouf (Mulhouse)
Deformations of algebras and Hopf algebras
Wednesday, May 10, 2000, 16:00 c.t., U2-232
R. Nörenberg (Essen)
On Hall polynomials of En
Friday, May 12, 2000, 15:00 c.t., V2-216
A. Yakovlev (St. Petersburg/Bielefeld)
Krull-Schmidt theorem for artinian modules over local rings
Friday, May 19, 2000, 14:00 c.t., V2-216
A. Skowronski (Torun/Bielefeld)
Algebras with small homological dimension
Wednesday, June 7, 2000, 16:00 c.t., V2-216
W. Crawley-Boevey (Leeds/Bielefeld)
More on Marsden-Weinstein reduction for representations of quivers
Friday, June 9, 2000, 13:00 c.t., V2-216
E. Guhe (Tübingen)
Madhava's discovery of the Leibniz series
Friday, June 16, 2000, 13:00 c.t., V2-216
M. Schmidmeier (Boca Raton, Bielefeld)
Some varieties of modules constructed from Cozzens' domain
Friday, June 16, 2000, 15:00 c.t., V2-216
D. Happel (Chemnitz)
A characterization of hereditary categories with tilting object (introduction and an outline of the proof, I)
Wednesday, June 21, 2000, 15:00 c.t., V2-216
D. Happel (Chemnitz)
A characterization of hereditary categories with tilting object (introduction and an outline of the proof, II)
Wednesday, June 21, 2000, 17:00 s.t., V2-216
D. Christensen (Princeton)
Brown representability for derived categories
Wednesday, June 28, 2000, 16:00 c.t., V2-216
A. Krause (Bielefeld)
Algebraic computations in derived categories
Friday, October 20, 2000, 13:00 c.t., V2-216
J. Shi (Shanghai/Bielefeld)
Coxeter elements, distinguished involutions and left cells
Friday, October 20, 2000, 15:00 c.t., V2-216
O. Kerner (Düsseldorf/Bielefeld)
Examples of exact categories
Friday, November 3, 2000, 13:00 c.t., V2-216
A. Zubkov (Omsk/Bielefeld)
"Mixed" representations of quivers
Friday, November 3, 2000, 15:00 c.t., V2-216
D. Benson (Athens, Georgia)
Quantum complete intersections and blocks of finite groups
Wednesday, November 8, 2000, 17:00 c.t., V6-144
D. Guhe (Bielefeld)
Hall polynomials for Dynkin algebras
Friday, November 10, 2000, 13:00 c.t., V2-216
D. Benson (Athens, Georgia)
Grothendieck's local duality and modular representations of finite groups
Friday, November 10, 2000, 15:00 c.t., V2-216
C,M. Ringel (Bielefeld)
Construction of hereditary categories with Serre duality
Friday, November 17, 2000, 15:00 c.t., V2-216
C.M.Ringel (Bielefeld):
Infinite dimensional representations of algebras with a separating tubular family
Friday, December 1, 2000, 13:30, V2-216
V.Dlab (Carleton University, Ottawa):
Koszul extension algebras
Friday, December 1, 2000, 15:15, V2-216
A. Vershik (Steklov-Institut, St.Petersburg)
Asymptotic theory of representations of symmetric groups and groups of infinite matrices over finite fields
Friday, December 8, 2000, 15:15 s.t., V2-216
Karsten Schmidt (Bielefeld)
Charaktere und endoendliche Moduln
5.1.01, 13:15 Uhr, V2-216
Henning Krause (Bielefeld)
Filtering modules of finite projective dimension
5.1.01, 15:15 Uhr, V2-216
Y. Lin (Xiamen/Bielefeld)
On elliptic Lie algebras
Wednesday, January 10, 2001, 16:00 c.t., V6-144
B. Deng (Bielefeld/Beijing)
Ringel-Hall algebras and Lusztig's symmetries
17.01.2001, 16:15, V6-144
C.M.Ringel (Bielefeld)
Subgroups of finite abelian groups
Friday, January 26, 2001, 15:15, V2-216
L. Li (Bielefeld)
Weight property for ideals of U_q(sl_2)
02.02.2001, 14:15 s.t., V2 - 216
B. Deng (Bielefeld/Beijing)
The Sevenhant - Van den Bergh approach to the Kac conjecture
02.02.2001, 15:45 s.t., V2 - 216
M. Kuenzer (Bielefeld)
On Lusztig's work on rational realizability of characters of group representations
Wednesday, February 7, 2001, 15:30, V6-144
G. D'Este (Mailand)
Cotilting-type bimodules with few reflexive modules
Wednesday, February 7, 2001, 17:00, V6-144
Lutz Hille (Bielefeld)
Quivers and Reflexive Polytopes
Freitag, 2.3.2001, 16:15, V4-119
Lutz Hille (Bielefeld)
Tame quivers and affine Lie algebras I: Convolution products
20.04.2001, 13:15, V2-222
Dietmar Guhe (Bielefeld)
Tame quivers and affine Lie algebras II: Hall Polynomials
27.04.2001, 13:15, V2 - 222
Matthias Künzer (Bielefeld)
Some cyclotomic additive Galois cohomology rings
27.04.2001, 15:15, V2 - 222
Li-Bin Li (Bielefeld)
Tame quivers and affine Lie algebras III: Hall functors and Hall maps
Fr, 04.05.2001, 13:15 Uhr, V2-222
Angela Holtmann (Bielefeld)
Tame quivers and affine Lie algebras IV: Reflection functors
Mi, 09.05.2001, 14:15 Uhr, T2-234
Thomas Brüstle (Bielefeld)
Tame quivers and affine Lie algebras V: Finite case
16.05.2001, 14:15, T2 - 234
Bernt Jensen (Bielefeld/Trondheim)
Tame quivers and affine Lie algebras VI: Kronecker and cyclic quiver
16.05.2001, 16:15, U2 - 232
Volodymyr Mazorchuk (Bonn)
Generalized Verma modules are rigid
Mi, 23.05.2001, 14:15 Uhr, T2-234
Igor Burban (Kaiserslautern)
Derived tameness of some associative algebras
Mi, 23.05.2001, 16:15 Uhr, U2-223
G. Pfeiffer (Galway)
Hecke Algebras I: Finite Coxeter Groups, Basic Algorithms
Fr, 01.06.2001, 13:15 Uhr (s.t.) - 14:15 Uhr (s.t.), V2-222
G. Pfeiffer (Galway)
Hecke Algebras II: Parabolic Subgroups
Fr, 01.06.2001, 14:30 Uhr (s.t.) - 15:30 Uhr (s.t.), V2-222
G. Pfeiffer (Galway)
Hecke Algebras III: Conjugacy Classes, Special Elements, Braid Monoids
Fr, 01.06.2001, 16:00 Uhr (s.t.) - 17:00 Uhr (s.t.), V2-222
C.M. Ringel (Bielefeld)
Tame quivers and affine Lie algebras VII: Tame case
Mi, 6.6.01, 16.00 Uhr (c.t.), U2-232
G. Pfeiffer (Galway)
Hecke Algebras IV: Irreducible Representations
Fr, 8.6.01, 13:15 Uhr (s.t.) - 14:15 Uhr (s.t.), V2-222
G. Pfeiffer (Galway)
Hecke Algebras V: Iwahori-Hecke Algebras as Symmetric Algebras
Fr, 8.6.01, 14:30 Uhr (s.t.) - 15:30 Uhr (s.t.), V2-222
G. Pfeiffer (Galway)
Hecke Algebras VI: Character Formulas, Generic Degrees
Fr, 8.6.01, 16:00 Uhr (s.t.) - 17:00 Uhr (s.t.), V2-222
Liangang Peng (Chengdu/Bielefeld)
Symmetrizable intersection matrix Lie algebras and d-fold affinizations
Mi, 13.06.2001, 14.00 Uhr (c.t.), T2-234
J.M. Douglass (Denton)
Hecke Algebras VII: Hecke algebras as endomorphism rings and the Deligne-Langlands-Lusztig conjecture
Fr, 15.06.2001, 13.15 Uhr (s.t.) - 14.15 Uhr (s.t.), V2-222
J.M. Douglass (Denton)
Hecke Algebras VIII: Affine Weyl groups and affine Hecke algebras
Fr, 15.06.2001, 14.30 Uhr (s.t.) - 15.30 Uhr (s.t.), V2-222
J.M. Douglass (Denton)
Hecke Algebras IX: A geometric construction of the generic Hecke Algebra of a finite Weyl group
Fr, 15.06.2001, 16.00 Uhr (s.t.) - 17.00 Uhr (s.t.), V2-222
M. Vybornov (Bonn)
Affine Lie algebras, quiver varieties, and algebras of BPS states
Mi, 27.06.2001, 14.00 Uhr (c.t.), T2-234
L. Peng (Chengdu/Bielefeld)
2-extended affine Lie algebras and Ringel-Hall Lie algebras of tubular algebras
Mi, 27.06.2001, 16.00 Uhr (c.t.), U2-232
J.M. Douglass (Denton)
Hecke Algebras X: Introduction to equivariant $K$-theory
Fr, 29.06.2001, 13.15 Uhr (s.t.) - 14.15 Uhr (s.t.), V2-222
J.M. Douglass (Denton)
Hecke Algebras XI: Affine Hecke algebras and the equivariant $K$-theory of the Steinberg variety
Fr, 29.06.2001, 14.30 Uhr (s.t.) - 15.30 Uhr (s.t.), V2-222
J.M. Douglass (Denton)
Hecke Algebras XII: Representations of affine Hecke algebras via $K$-theory
Fr, 29.06.2001, 16.00 Uhr (s.t.) - 17.00 Uhr (s.t.), V2-222
G. Lehrer (Sydney)
Hecke Algebras XIII: Fundamental groups, cylindrical braids and the affine Hecke algebras of classical type
Fr, 06.07.2001, 13.15 Uhr (s.t.) - 14.15 Uhr, V2-222
G. Lehrer (Sydney)
Hecke Algebras XIV: Finite and affine Temperley-Lieb algebras; cellular theory and decomposition of cell modules
Fr, 06.07.2001, 14.30 Uhr (s.t.) - 15.30 Uhr (s.t.), V2-222
G. Lehrer (Sydney)
Hecke Algebras XV: Identification of some standard modules with cell modules in the Grothendieck ring
Fr, 06.07.2001, 16.00 Uhr (s.t.) - 17.00 Uhr (s.t.), V2-222
G. Lehrer (Sydney)
Hecke Algebras XVI: Diagrams and cellular theory for the Temperley-Lieb algebras
Mo, 09.07.2001, 13.15 Uhr (s.t.) - 14.15 Uhr (s.t.), V2-200
G. Lehrer (Sydney)
Hecke Algebras XVII: Decomposition for the affine Temperley-Lieb category
Mo, 09.07.2001, 14.30 Uhr (s.t.) - 15.30 Uhr (s.t.), V2-216
G. Lehrer (Sydney)
Hecke Algebras XVIII: Application to the representation theory of the affine Hecke algebras
Mo, 09.07.2001, 16.00 Uhr (s.t.) - 17.00 Uhr (s.t.), V2-216
M. Schmidmeier (Boca Raton, Florida/Bielefeld)
Auslander-Reiten Quivers for Submodule Problems
Mi, 11.07.2001, 14.00 Uhr (c.t.), T2-234
L.Hille (Hamburg)
Nilpotent Class Representations
Mo, 10.09.2001, 14:00 (s.t.), V4-119
V. Dlab (Carleton University/Prag)
Hilbert and Poincare series of algebras
Mi, 10.10.2001, 17.15 Uhr, V4-119
Libin Li (Bielefeld)
The coradical filtration for double Ringel-Hall algebras
Fr, 26.10.2001, 14:15, V2-210
Thomas Brüstle (Bielefeld)
Tame trees I: survey
Fr, 26.10.2001, 15:30, V2-210
Mark Kleiner (Syracuse)
Reflection functors and the preprojective algebra of a quiver
Do, 8.11.2001, 14:15, V5-148
Thomas Brüstle (Bielefeld)
Tame trees II: pg-critical algebras
Fr, 9.11.2001, 14:15, V2-210
Thomas Brüstle (Bielefeld)
Tame trees III: degenerations
Fr, 9.11.2001, 15:30, V5-148
Thomas Br\"ustle (Bielefeld)
Tame trees IV
Freitag, 23.11.2001, 14:15, V2-210
November 2001:
Reports on Ideal classes of the Weyl algebra and non-commutative projective geometry. by: Yuri Berest and George Wilson, (with an appendix by M.Van den Bergh)
Jiachen Ye (Bielefeld/Shanghai)
Cartan invariants of finite groups of Lie type
Freitag, 23.11.2001, 15:30, V4-119
Freitag, 30.11. und Samstag 01.12.2001
Perspektiven in der Darstellungstheorie
Ch. Geiss (Bielefeld/Mexiko)
Non-reduced automorphism schemes of algebras
Freitag, 7.12.2001, 13:15, V4-119
H. Krause (München/Bielefeld)
Applications of cotorsion pairs
Freitag, 7.12.2001, 14:30, V4-119
Fang Li (Bielefeld/Hangzhou)
Inverse braid monoids and a generalization of tensor category
Freitag, 7.12.2001, 15:45, V4-119
Anh (Bielefeld/Budapest)
Self duality of serial rings revisited
Freitag, 14.12.2001, 12:30, V4 - 116
Th. Brüstle (Bielefeld)
Tame tree algebras V
Freitag, 14.12.2001, 14:15, V2-210
R. Farnsteiner (Bielefeld)
Infinitesimal Groups of Tame Representation Type I
Freitag, 11.01.2002, 12:30, V4-119
L. Hille (Hamburg)
The Components of Lusztig's Nilpotent Variety for Trees
Freitag, 11.01.2002, 15:30, V4-119
R. Farnsteiner (Bielefeld)
Infinitesimal Groups of Tame Representation Type II
Freitag, 18.01.2002, 12:30, V4-119
Xiuping Su (Bielefeld)
The representations of tame roots
Mittwoch, 23.01.2002, 16:15, V5 - 148
Rolf Farnsteiner (Bielefeld)
Infinitesimal Groups of Tame Representation Type III
Freitag, 25.01.2002, 13:15, V4 - 119
Rolf Farnsteiner (Bielefeld)
Infinitesimal Groups of Tame Representation Type IV
Freitag, 01.02.2002, 13:15, V4 - 119
I. Reiten (Bielefeld/Trondheim)
Generalizations of tilted algebras
Montag, 22.04.2002, 16:15, V5 - 148
M. Barot (UNAM)
Versteckte Einheitsformen
Freitag, 03.05.2002, 15:15, U2 - 200
A. Martsinkovsky (Northeastern, Boston)
Linkage of Modules, Annihilators, 1-Torsion, and Derived Categories
Montag, 6. Mai, 16:15, V5 - 148
D. Kussin (Paderborn)
Exzeptionelle Moduln über domestiziert kanonischen Algebren
Freitag, 10. Mai, 15:15, U2 - 200
Thorsten Holm (Magdeburg)
Gruppenalgebren mit zahmem Darstellungstyp
Freitag, 24.05.2002, 15:15, U2 - 200
Marcos Soriano (Bielefeld)
Hecke Algebren Ganzzahlig
Freitag, 14.06.2002, 15:15, U2 - 200
Marcos Soriano (Bielefeld)
Verflechtungszahlen für Weyl Moduln
Freitag, 21.06.2002, 15:15, U2 - 200
Dag Madsen (Bielefeld)
Derived equivalences of graded algebras and generalized Koszul duality
Freitag, 28.06.2002, 15:15, U2 - 200
M. Schmidmeier (Bielefeld/Boca Raton)
Untergruppen endlicher abelscher Gruppen
Mittwoch, 03.07.2002, 14:15, V5 - 148
Th. Brüstle (Bielefeld)
Typical Examples of Tame Algebras, I
Mittwoch, 03.07.2002, 16:00, V5 - 148
D. Pucinskaite (Bielefeld)
Verma Moduln von sl2, sl3 und sl4
Donnerstag, 04.07.2002, 14:15, U5 - 133
Th. Brüstle (Bielefeld)
Typical Examples of Tame Algebras, II
Donnerstag, 04.07.2002, 16:00, U5 - 133
L. Hille (Hamburg)
Parabolische Gruppenaktionen, orbitale Varietäten und der Darstellungsraum der Auslander-Algebra von k[T]/Tn
Freitag, 05.07.2002, 15:15, U2 - 200
Loic Foissy (Reims/Bielefeld):
Hopf algebras of trees
Donnerstag, 01.10.2002, 13:15, U5 - 133
Raf Bocklandt (Antwerp/Bielefeld):
Geometry of Quiver Quotient Varieties
Donnerstag, 10.10.2002, 13:15, U2 - 232
Dag Madsen (Trondheim/Bielefeld):
Projective dimensions and almost split sequences
Donnerstag, 17.10.2002, 12:15, U2 - 232
Andrew Hubery (Leeds/Bielefeld):
Quivers with an automorphism, their representations and symmetrisable Kac-Moody Lie algebras
Freitag, 18.10.2002, 13:15, V2 - 210
D. Leites (Bonn)
The Howe duality and how to quantize the bracket and the antibracket
Freitag, 15.11.2002, 13:15, V2-210
Andrew Hubery (Leeds/Bielefeld)
Generic Extensions and Degenerate Quantized Enveloping Algebras (Survey)
Freitag, 15.11.2002, 14:45, V2-210
Shunhua Zhang (Jinan/Bielefeld)
Representations of Dynkin Quivers
Freitag, 29.11.2002, 13:15, V2-210
Angela Holtmann (Bielefeld)
Construction methods for families of indecomposable representations
Freitag, 6.12.2002, 13:15, V2-210
Dorothea Jolk (Bielefeld)
Geometry of Representations
Freitag, 6.12.2002, 14:30, V2-210
Markus Schmidmeier (Boca Raton)
Subgroup Problems of Wild Representation Type
Donnerstag, 19.12.2002, 14:15, V4-116
Shunhua Zhang (Jinan)
Some Results about Tame Ringel-Hall Algebras
Donnerstag, 19.12.2002, 15:45, V4-116
Csaba Szanto (Cluj-Napoca)
Hall polynomials and the Hall algebra for the Kronecker quiver
Donnerstag, 09.01.2003, 10:15, V5-148
Victor Petrogradsky (Ulyanovsk/Düsseldorf)
Growth of Subalgebras for Restricted Lie Algebras
Freitag, 07.02.2003, 13:15, V2-210
Lutz Hille (Hamburg)
Orbital Varieties and Representations of the Auslander Algebra of k[T]/T n
Freitag, 14.02.2003, 13:15, V2-210
Hui-Xiang Chen (Yangzhou/Aachen)
A class of quantum doubles and their representations
Donnerstag, 6. März 2003, 14:15, V5 - 148
Abudukade Wufu (Beijing/Bielefeld)
Monomial bases of quantized enveloping algebras
Donnerstag, 6. März 2003, 15:30, V5 - 148
Yingbo Zhang (Beijing)
On Hom-spaces of Tame Algebras
Donnerstag, 6. März 2003, 17:15, V5 - 148
V. Dlab (Carleton)
Stratified endomorphism algebras
Tuesday, March 25, 14:15, V5 - 148
Hideto Asashiba (Osaka)
Realization of simple Lie algebras via Hall algebras I
Freitag, 02.05.2003, 13:15, U2-147
Rolf Farnsteiner (Bielefeld)
Differentiably simple algebras
Freitag, 02.05.2003, 14:30, U2-147
Hideto Asashiba (Osaka)
Realization of simple Lie algebras via Hall algebras II
Fr, 09.05.03, 13:15, U2-147
Dong Liu (Shanghai)
The 2-extended affine Lie algebras of Saito-Yoshii
Fr, 09.05.03, 14:30, U2-147
Claus Michael Ringel (Bielefeld)
The Brauer-Thrall Conjectures
Fr, 09.05.03, 15:45, U2-147
A. Wufu (Beijing,Bielefeld)
Ringel-Hall Algebras of Root Categories
Fr., 16.05.2003, 13:15, U2-147
L. Hille (Hamburg)
Derived Categories and Exceptional Objects, I
Fr., 16.05.2003, 14:30, U2-147
P. Anh (Budapest)
Derived Categories and Exceptional Objects, II
Fr., 23.05.2003, 13:15, D2-152
H. Asashiba (Osaka)
Real Root Objects, I
Fr., 23.05.2003, 14:30, D2-152
Th. Brüstle (Bielefeld)
Intersection Matrix Lie algebras and reflections
Fr., 23.05.2003, 15:45, D2-152
G. Lehrer (Sydney)
Affine Hecke algebras and affine Temperley-Lieb algebras
Fr., 30.05.2003, 13:15, U2-147
P. Anh (Budapest)
Mueller's question on good duality of semiperfect complete HNP-rings
Fr., 30.05.2003, 14:30, U2-147
A. Hubery (Bielefeld)
Comparison of Kronecker modules and vector bundles over the projective line
Fr., 30.05.2003, 15:45, U2-147
M. Schocker (Oxford)
Solomon's descent algebra
Dienstag, 3. Juni, 14:15, V3 - 204
A. Holtmann (Bielefeld)
Imaginary root spaces of elliptic Lie algebras
Freitag, 6. Juni, 13:15, U2-147
Th. Brüstle (Bielefeld)
Representations of symmetric groups and Lie theory, I (Kleshchev 1)
Freitag, 6. Juni, 14:30, U2-147
K. Schmidt (Bielefeld)
Real Root Objects, II
Fr., 13.06.2003, 13:15, U2-147
M. Soriano (Hannover)
Parabolic Subalgebras and Mackey Theorem (Kleshchev 2)
Fr., 13.06.2003, 14:30, U2-147
R. Farnsteiner (Bielefeld)
Duality (Kleshchev 3)
Fr., 13.06.2003, 15:45, U2-147
D. Pucinskaite (Bielefeld)
Generalized Eigenspaces (Kleshchev 4)
Fr., 20.06.2003, 13:15, U2-147
A. Beineke (Bielefeld)
Kato's Theorem (Kleshchev 5)
Fr., 20.06.2003, 14:30, U2-147
T. Pirashvili (Bielefeld)
Comparison of recollments of abelian categories
Mi, 02.07.2003, 16:00, C01-239
C. Chesne (Düsseldorf)
One-point extensions of wild hereditary algebras
Mi, 02.07.2003, 17:30, C01-239
K. Schmidt (Bielefeld)
Socle multiplicities (Kleshchev 6)
Fr., 04.07.2003, 13:15, U2-147
A. Holtmann (Bielefeld)
Crystal operators (Kleshchev 7)
Fr., 04.07.2003, 14:30, U2-147
I. Gordon (Glasgow)
Symplectic reflection algebras and resolutions of singularities
Fr., 11.07.2003, 13:15, U2-147
A. Wufu (Bielefeld)
Independence of characters (Kleshchev 8)
Fr., 11.07.2003, 14:30, U2-147
A. Hubery (Bielefeld)
Alternative descriptions (Kleshchev 9)
Fr., 11.07.2003, 15:45, U2-147
M. Soriano (Hannover)
Irreducible induced modules (Kleshchev 10)
Fr., 25.07.2003, 13:15, U2-147
D. Liu (Shanghai/Bielefeld)
Calculations for small rank (Kleshchev 11)
Fr., 25.07.2003, 14:30, U2-147
D. Vossieck (Bielefeld)
Varieties of modules over Artin algebras
Fr., 01.08.2003, 13:15, U2-147
Asashiba, Geiß, Holtmann:
Some new (or old, but definitely interesting) results presented at the Frobenius conference at Torun.
Friday, 19.09.2003, 14:15 - 16:00, V2-216
Christoph Geiss (Mexiko-Stadt)
On the Classification of the Indecomposable Representations of the Quaternion Group in Characteristic 2
Dienstag, 21.10.2003, 13:15, V3-204
A. Wufu (Beijing/Bielefeld)
Tilting functors and Hall algebras
Tuesday, 28.10.2003, 13:15, V3-204
D. Liu (Shanghai/Bielefeld)
Steinberg Leibniz algebras
Tuesday, 28.10.2003, 14:30, V3-204
H. Alvarez (Bielefeld/Mexiko-Stadt)
Algebras and coalgebras
Tuesday, 04.11.2003, 13:15, V3-204
P. Fahr (Bielefeld)
Modules and comodules
Tuesday, 04.11.2003, 14:30, V3-204
D. Liu (Shanghai/Bielefeld)
Structure theory of coalgebras and comodules
Tuesday, 11.11.2003, 13:15, V3-204
J. Carlson (Athens (Georgia))
The classification of endotrivial modules
Tuesday, 11.11.2003, 15:15, V3-204
R. Farnsteiner (Bielefeld)
Equivalences between categories of comodules
Tuesday, 18.11.2003, 13:15, V3-204
A. Savage (Yale/MPI Bonn)
Geometric and Combinatorial Realizations of Crystal Graphs
Tuesday, 18.11.2003, 15:15, V3-204
J. Cuadra (Almeria/Bielefeld)
Special classes of coalgebras, I
Tuesday, 25.11.2003, 13:15, V3-204
O. Solberg (Trondheim/Paderborn)
Support varieties, from group to Hochschild cohomology
Tuesday, 25.11.2003, 15:15, V3-204
J. Cuadra (Almeria/Bielefeld)
Special classes of coalgebras, II
Tuesday, 02.12.2003, 13:15, V3-204
O. Khomenko (Freiburg)
Categories with projective functors
Tuesday, 02.12.2003, 15:15, V3-204
A. Hubery (Paderborn)
The composition monoid of the Kronecker quiver
Tuesday, 16.12.2003, 13:15, V3-204
M. Schmidmeier (Boca Raton)
Birkhoff's Problem via Poset Representations
Tuesday, 16.12.2003, 15:15, V3-204
R. Farnsteiner (Bielefeld)
Tensor products of representations, I
Tuesday, 06.01.2004, 13:15, V3-204
R. Farnsteiner (Bielefeld)
Tensor products of representations, II
Tuesday, 13.01.2004, 13:15, V3-204
R. Farnsteiner (Bielefeld)
Tensor products of representations, III
Tuesday, 20.01.2004, 13:15, V3-204
B. Deng (Beijing)
Generic extensions and canonical basis for cyclic quivers, I
Tuesday, 20.01.2004, 15:15, V3-204
B. Deng (Beijing)
Generic extensions and canonical basis for cyclic quivers, II
Tuesday, 27.01.2004, 13:15, V3-204
I. Burban (Paris VI)
Fourier-Mukai transforms on a nodal Weierstrass curve
Tuesday, 27.01.2004, 15:15, V3-204
A. Holtmann (Bielefeld)
Tame and s-tame dimension vectors for stars
Tuesday, 03.02.2004, 13:15, V3-204
J. Schröer (Leeds)
Semicanonical bases of Kac-Moody Lie algebras
Wednesday, 04.02.2004, 16:15, D2-152
Li-meng Xia (Baoding/Bielefeld)
Vertex Representations of Virasoro-toroidal Lie algebras
Friday, 30.04.2004, 13:15, V2-216
S. Koshitani (Chiba)
Broue's abelian defect group conjecture
Tuesday, 04.05.2004, 18:00, V3-204
G. Lehrer (Sydney)
Invariant Theory and reflection Groups, I
Friday, 21.05.2004, 13:15, V2-216
C. Mueller (Giessen)
Groups with root systems of type G2
04.06.2004, 13:15, V2-216
G. Lehrer (Sydney)
Invariant Theory and Reflection Groups, III
Wednesday, 09.06.2004, 14:15, V2-216
G. Lehrer, N. Jing, N. Iyudu, S. Iyengar, J. de la Peña
NWDR Workshop
Thursday, 10.06.2004, 10:00, H 10
D. Kussin (Paderborn)
Characterization of commutative exceptional curves
Friday, 18.06.2004, 13:15, V2-216
A. Hubery (Paderborn)
The centre of a Hall algebra of a cyclic quiver
Friday, 18.06.2004, 16:30, V2-216
A. Rosenberg (Kansas State University, USA)
Spectra of noncommutative spaces
Wednesday, 30.06.2004, 16:15, U5-133
A. Mathas (Sydney)
Row and column removal theorems for homomorphisms of Specht modules and Weyl modules
Friday, 09.08.2004, 13:15, V2-216
K. Brüning (Paderborn)
Models of the stable homotopy category and algebraic K-theory
Friday, 23.07.2004, 12:15, V2-216

First lectures on the Reineke paper "Cohomology of non-commutative Hilbert schemes"
A. Hubery (Paderborn):
1. Introduction
C.M. Ringel (Bielefeld):
2. Words and Forests
3. The cell decomposition
Friday, 23.07.2004, 14:15, V2-216

C.M. Ringel (Bielefeld):
Triangulated categories, Freyd categories and their abelianization (P.Freyd versus M.Auslander)
Friday, 30.07.2004, 12:15, V2-216

Second series of lectures on the Reineke paper
A. Holtmann (Bielefeld) and A. Hubery (Paderborn):
Sections 4-6: Applications of the cell decomposition, Properties of the generating functions, Asymptotics
Friday, 30.07.2004, 14:15, V2-216

J. Kosakowska (Torun/Bielefeld)
Hall algebras and polynomials for poset representations
Friday, 22.10.2004, 13:15, V2-216
L. Xia (Baoding/Bielefeld)
Power series of Lie type
Friday, 22.10.2004, 14:30, V2-216
E. Green (Blacksburg)
Resolutions over Koszul Algebras and Hochschild Cohomology
Friday, 29.10.2004, 13:15, V2-216
A. Lopatin (Omsk/Bielefeld)
Invariants of Quiver Representations
Friday, 29.10.2004, 14:30, V2-216
J. Kosakowska (Torun/Bielefeld)
The existence of Hall polynomials for prinjective modules
Friday, 05.11.2005, 13:15, V2-216
D. Pucinskaite (Bielefeld)
Submodules of projective sl(3)-modules
Friday, 12.11.2005, 13:15, V2-216
C. Xi (Beijing/Bielefeld)
Comparisons of finitistic dimensions of algebras and their subalgebras
Wednesday, November 24, 16:15, V3-204
A. Hubery (Bielefeld)
Quantum affine algebras and extensions of modules
Wednesday, November 24, 17:15, V3-204
K. Brüning (Paderborn)
Homological Algebra and Stable Homotopy Theory
Friday, 10.12.2004, 13:15, V2-216
N. Jing (Raleigh)
Affine Lie algebras, wreath products and symmetric functions
Fri, 17.12.2004, 13:15, V2-216
J. Schröer (Leeds)
Examples of maximal 1-orthogonal modules
Thursday, 23.12.2004, 15:30, V3-201
T. Holm (Leeds)
Cartan determinants for gentle algebras
Friday, 7.1.2005, 13:15, V2-216
N. Jing (Raleigh/Bielefeld)
Affine Lie algebras, wreath products and symmetric functions, II
Friday, 14.01.05, 13:15, V2-216
M. Soriano (Hannover)
On local group algebras
Friday, 21.01.2005, 13:15, V2-216
N. Jing (Raleigh/Bielefeld)
Affine Lie algebras, wreath products and symmetric functions, III
Friday, 21.01.2005, 16:00, V2-216
A. Weiner (Bielefeld)
Morita theory, generalized tilting and stable model categories
Friday, 28.01.2005, 13:15, V2-216
A. Zelevinsky (Boston/Bielefeld)
Rank 2 cluster algebras and root systems
Friday, 18.02.2005, 16:00, V2-216
A. Lopatin (Omsk/Bielefeld)
Representations of *-quivers: Orbits and the categorical quotient.
Friday, 04.03.2005, 13:15, U5-133
Philipp Fahr (Bielefeld)
Examples of Tame Algebras
Friday, 15.04.2005, 13:15, V2-216
Angela Holtmann (Bielefeld)
Extensions of Tame Algebras
Friday, 15.04.2005, 14:30, V2-216
R. Farnsteiner (Bielefeld)
Extensions of domestic algebras, I,II
Friday, 22.04.2005, 13:15, V2-216
Y. Wu (Bielefeld)
Standardly Stratified Algebras, I
Friday, 29.04.2005, 13:15, V2-216
B. Chen (Bielefeld)
Standardly Stratified Algebras, II
Friday, 29.04.2005, 14:30, V2-216
A. Beineke (Bielefeld)
Standardly stratified algebras, III
Friday, 06.05.2005, 13:15, V2-216
A. Hubery (Bielefeld)
Standardly stratified algebras, IV
Friday, 06.05.2005, 14:30, V2-216
C.M. Ringel (Bielefeld)
Semilinear Strings and Bands
Friday, 13.05.2005, 13:15, V2-216
Yu. Drozd (Kiev)
Wild algebras are controlled wild
Wednesday, 18.05.05, 14:15, V3-201
G. Schiffels (Bielefeld)
Galois rings via Krull, Witt, Dedekind and Hensel
Friday, 03.06.05, 13:15, V2-216
G. Schiffels (Bielefeld)
Codes via modular representation theory
Friday, 03.06.05, 14:15, V2-216
C.M. Ringel (Bielefeld)
The Gabriel-Roiter measure
Friday, 10.06.05, 13:15, V2-216
C. Richard (Bielefeld)
A combinatorial introduction to the Airy distribution
Friday, 10.06.05, 14:15, V2-216
M. Butler (Liverpool)
Decomposition of lattices
Thursday, 23.06.2005, 14:30, A3-137
M. Ziegler (Freiburg)
Superzerlegbare Moduln
Thursday, 23.06.2005, 16:00, A3-137
B. Chen (Bielefeld)
The Gabriel-Roiter measure and representation finite algebras
Friday, 24.06.2005, 13:15, V2-216
R. Farnsteiner (Bielefeld)
G1T-modules, AR-components, and good filtrations
Thursday, 07.07.2005, 12:00, V3-204
Shao-Ming Fei (Bonn)
Quantum Entanglement and Concurrence of Bipartite Quantum Systems
Wednesday, 13.07.2005, 16:00, T2-220
Karin Baur (San Diego)
A normal form of Richardson elements for parabolic subalgebras of the classical Lie algebras
Friday, 15.07.2005, 13:00, V2-216
D. Liu (Shanghai)
The twisted Heisenberg-Virasoro algebra
Wednesday, 20.07.05, 16:00, T.B.A.
C.M. Ringel (Bielefeld)
Rhombal algebras
Wednesday, 20.07.05, 17:00, T.B.A.
M. Schmidmeier (Florida, z.Z. Trondheim)
Auslander-Reiten theory for subspace categories
Thursday, 18.08.05, 14:15, V3-204
R. Waldmüller (Aachen)
On Donovan's conjecture for classical groups
Monday, 26.09.05, 15:15, V3-201
V. Dlab (Ottawa)
Standardly stratified algebras form trees parametrized by properly stratified algebras
Monday, 26.09.05, 16:30, V3-201
L. Hille (Bielefeld)
Stability for Dynkin quivers
Friday, 28.10.05, 13:15, V2-216
A. Hubery (Paderborn)
Survey on cluster algebras
Friday, 28.10.05, 14:30, V2-216
C.M. Ringel (Bielefeld)
Survey on cluster tilted algebras
Friday, 28.10.05, 15:45, V2-216
D.Pucinskaite (Bielefeld)
Cluster tilting I
Friday, 04.11.2005, 13:15, V2-216
P. Fahr (Bielefeld)
Cluster Tilting II
Friday, 04.11.2005, 14:30, V2-216
R. Olbricht (Münster)
On degenerations between preprojective modules over wild quivers
Friday, 11.11.2005, 13:15, V2-216
P. Fahr (Bielefeld)
Cluster tilting III
Friday, 11.11.2005, 14:30, V2-216
N. Mahrt (Bielefeld)
Cluster tilting IV
Friday, 11.11.2005, 15:45, V2-216
J. Kosakowska (Torun)
Hall and Lie algebras connected with poset's representations
Friday, 18.11.2005, 13:15, V2-216
R. Bocian (Torun)
Cluster tilted algebras of finite representation type, I
Friday, 18.11.2005, 14:30, V2-216
P. Malicki (Torun)
Algebras with seperating almost cyclic coherent AR-components
Wednesday, 23.11.2005, 16:00 (s.t.), V3-204
P. Malicki (Torun)
Cluster-tilted algebras of finite representation type, II
Friday, 25.11.2005, 13:15, V2-216
J. Kosakowska (Torun)
Cluster algebras as Hall algebras of quiver representations
Friday, 25.11.2005, 14:30, V2-216
R. Bocian (Torun)
Socle deformation of self-injective algebras of Euclidean type
Friday, 25.11.2005, 15:45, V2-216
Z. Huang (Nanjing)
Generalized tilting modules
Friday, 02.12.2005, 13:15, V2-216
A. Beineke (Bielefeld)
Cluster-tilted algebras, I
Friday, 02.12.2005, 14:30, V2-216
B. Chen (Bielefeld)
Cluster-tilted algebras, II
Friday, 02.12.2005, 15:45, V2-216
G. Röhrle (MPI Bonn)
On Serre's notion of complete reducibility and geometric invariant theory
Wednesday, 07.12.2005, 15:45, V3-204
R. Farnsteiner (Bielefeld)
Almost complete tilting modules
Friday, 09.12.2005, 13:15, V2-216
B. Chen (Bielefeld)
Cluster categories and duplicated algebras
Friday, 09.12.2005, 14:30, V2-216
A. Lopatin (Omsk)
SO(n) invariants of several matrices and quivers
Friday, 16.12.2005, 13:15, V2-216
S. Spiska (Bielefeld)
Der Homotopietyp eines A^2_n Polyeders mit n>2
Friday, 16.12.2005, 14:30, V2-216
G. Todorov (Boston)
Cluster Categories and Related topics I
Wednesday, 21.12.2005, 15:45, V3-204
G. Todorov (Boston)
Cluster Categories and Related topics II
Thursday, 22.12.2005, 16:15, V2-216
G. Todorov (Boston)
Cluster Categories and Related topics III
Thursday, 22.12.2005, 17:30, V2-216
S. Duplij (z. Zt. Münster)
Towards quantization of rings with von Neumann regular generators and their representations
Friday, 06.01.2006, 13:00, V2-216
C. M. Ringel (Bielefeld)
Cluster tilted algebras are Gorenstein of Gorenstein dimension <= 1 (report on Keller-Reiten)
Friday, 13.1.2006, 13:15, V2-216
R. Farnsteiner (Bielefeld)
Complexity of finite group schemes
Friday, 13.1.2006, 14:30, V2-216
A. Holtmann (Bielefeld)
Cluster tilted algebras are stably Calabi-Yau I (report on Keller-Reiten)
Friday, 13.1.2006, 15:45, V2-216
J. Xiao (Beijing)
Derived categories and Lie algebras
Friday, 20.01.2006, 13:15, V2-216
D. Pucinskaite (Bielefeld)
Cluster-tilted algebras are Gorenstein and Calabi-Yau, III
Friday, 20.01.2006, 14:30, V2-216
L. Hille (Bielefeld)
Cluster-tilted algebras are Gorenstein and Calabi-Yau, IV
Friday, 20.01.2006, 15:45, V2-216
O. Iyama (Nagoya)
Affine Weyl groups and tilting modules over 2-Calabi-Yau algebras
Friday, 10.02.2006, 13:15, V2-216
H. Krause (Paderborn)
The Gabriel-Roiter measure: An axiomatic approach
Friday, 10.02.2006, 14:30, V2-216
L. Hille (Bielefeld)
Construction of Calabi-Yau varieties and tilting bundles
Friday, 10.02.2006, 15:45, V2-216
S. Goodwin (Oxford)
Good grading polytopes
Thursday, 16.02.2006, 14:15, V3-204
D. Vossieck (Morelia)
On generic homomorphisms between finite abelian p-groups
Thursday, 16.02.2006, 15:30, V3-204
C.M. Ringel (Bielefeld)
Degenerations of modules and construction of generic modules
Friday, 07.04.2006, 13:15, S2-143
Bo Chen (Bielefeld)
The Gabriel-Roiter measure for representation-finite hereditary algebras
Friday, 07.04.2006, 14:30, S2-143
B. Zhu (Beijing)
Abelian quotient categories of triangulated categories
Friday, 21.04.06, 13:15, S2-143
D. Pucinskaite (Bielefeld)
Simple Modules in AR-Components, I
Friday, 21.04.06, 14:30, S2-143
R. Waldmueller (Bielefeld)
Simple Modules in AR-Components, II
Friday, 21.04.06, 15:45, S2-143
S. Liu (Sherbrooke)
The derived category of an algebra with radical squared zero
Friday, 28.04.06, 13:15, S2-143
A. Zelevinsky (Boston)
Laurent expansions in cluster algebras via quiver representations
Friday, 05.05.06, 13:15, V3-201
B. Leclerc (Caen)
Cluster algebra structure on coordinate rings of partial flag varieties
Friday, 05.05.06, 14:30, V3-201
O. Iyama (Nagoya)
Tilting modules and non-commutative crepant resolutions
Friday, 05.05.06, 15:45, V3-201
I. Reiten (Trondheim)
Calabi-Yau categories of dimension 2 and 3
Friday, 05.05.06, 17:00, V3-201
V. Dlab (Ottawa)
*-representations à la Kruglyak, Samoilenko et al.
Wednesday, 17.05.06, 13:15, R2-155
A. Zubkov (Omsk)
On the existence of tilting objects in some highest weight categories
Friday, 19.05.06, 13:15, S2-143
C. Szanto (Cluj-Napoca)
Submodules of Kronecker modules via Hall algebras
Friday, 19.05.06, 14:30, S2-143
L. Angeleri-Huegel (Varese)
A key module over pure-semisimple hereditary rings
Tuesday, 30.05.06, 10:00, V3-201
G. Lehrer (Sydney)
Endomorphism algebras of tensor powers
Tuesday, 30.05.06, 11:15, V3-201
G. Lehrer (Sydney)
Twisted Invariant Theory for Reflection Groups
Friday, 09.06.06, 13:15, S2-143
T. Holm (Magdeburg/Leeds)
Maximal n-orthogonal modules for selfinjective algebras
Friday, 16.06.06, 13:15, S2-143
R. Farnsteiner (Bielefeld)
Complexity of finite group schemes
Fri, 16.06.2006, 14:30, S2-143
V. Mazorchuk (Uppsala)
Quadratic duality via linear complexes
Fri, 23.06.2006, 13:15, S2-143
D. Benson (Aberdeen)
Adams resolutions in modular representation theory
Fri, 23.06.2006, 14:30, V3-201
S. Iyengar (Lincoln)
Class and rank of differential modules
Fri, 23.06.2006, 15:45, V3-201
B. Zhu (Beijing)
Combinatorics of d-Cluster Categories
Friday, 30.06.06, 13:15, S2-143
P. Fahr (Bielefeld)
Infinite-dimensional Modules over Wild Algebras
Friday, 30.06.06, 14:30, S2-143
G. Lehrer (Sydney)
Tensor Products: Classical and Quantum I
Tue, 11.07.2006, 10:15, V3-201
G. Lehrer (Sydney)
Tensor Products: Classical and Quantum II
Fri, 14.07.2006, 13:15, S2-143
Th. Brüstle (Sherbrooke)
On cyclic cluster algebras with three vertices
Fri, 14.07.2006, 14:30, S2-143
G. Vogelhuber (Bielefeld)
Über die Hopfinvariante
Wednesday, 09.08.2006, 15:15, V3-201
M. Schmidmeier (Boca Raton)
Abelian groups with a p2-bounded subgroup, revisited
Wednesday, 09.08.2006, 16:30, V3-201
L. Hille (Hamburg):
Markov triples and cyclic cluster algebras with three vertices
Wednesday, 09.08.2006, 17:45, V3-201
J. Shi (Shanghai)
Imprimitive complex reflection groups G(m,p,n)
Thursday, 24.08.2006, 18:15, V2-205
Johannes Engel (Münster)
Faltungsalgebren auf Konfigurationsräumen
Friday, 29.09.2006, 14:15, V3-201
Jan Schröer (Bonn)
Rigid modules over preprojective algebras: The Kac-Moody case
Friday, 29.09.2006, 15:30, V3-201
J.-M. Bois (Bielefeld/Reims)
Number of generators for simple Lie algebras in arbitrary characteristics
Friday, 20.10.2006, 13:15, U2-205
A. Lopatin (Bielefeld/Omsk)
Invariants of classical groups for several matrices and quivers
Friday, 20.10.2006, 14:30, U2-205
B. Leclerc (Caen)
Preprojective algebras and quantum groups
Friday, 27.10.06, 13:15, U2-205
J.A. De la Pena (Mexico-City)
Extended canonical algebras and singularities: 0. Survey
Friday, 27.10.06, 14:30, U2-205
N. Mahrt (Bielefeld)
Representations of the generalized Kronecker quiver with countably many arrows
Friday, 27.10.06, 15:45, U2-205
J.A. De la Pena (Mexico-City)
Extended canonical algebras and singularities: 1. Coxeter transformations
Friday, 03.11.06, 13:15, U2-205
D. Pucinskaite (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, I
Friday, 03.11.06, 14:30, U2-205
D. Jolk (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, II
Friday, 03.11.06, 15:45, U2-205
A. Wufu (Copenhagen)
A q-Analogue of the Weyl-Kac Denominator Identity of Type \tilde{B}_n
Monday, 13.11.2006, 18:15, V3-201
J.A. de la Peña (Mexico-City):
Extended canonical algebras and singularities: 2. Graded rings and singularities
Friday, 17.11.2006, 13:15, U2-205
J.A. de la Peña (Mexico-City):
Cleavages of graphs
Friday, 17.11.2006, 14:30, U2-205
A. Elashvili (z. Zt. Bochum):
Lie algebras of simple hypersurface singularities
Friday, 01.12.2006, 13:15, U2-205
L. Hille (Berlin):
On the volume of a tilting module
Friday, 01.12.2006, 14:30, U2-205
J.A. de la Peña (Mexico-City):
Extended canonical algebras and singularities: 3. Derived categories of singularities
Friday, 01.12.2006, 15:45, U2-205
D. Pucinskaite (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, I (cont.)
Friday, 08.12.2006, 13:15, U2-205
D. Jolk (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, II
Friday, 08.12.2006, 13:45, U2-205
P. Fahr (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, III
Friday, 08.12.2006, 15:00, U2-205
S. Mozgovoy (Mainz)
On the enumeration of quiver representaions and the Kac conjecture
Friday, 22.12.06, 13:15, U2-205
D. Vossieck (Morelia)
Rigid homomorphisms between finite length modules over a DVR
Friday, 22.12.06, 14:30, U2-205
A. Holtmann (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, IV
Friday, 22.12.06, 15:45, U2-205
Lesya Bodnarchuk (Kaiserslautern)
Representations of differential biquivers and coherent sheaves on degenerations of elliptic curves
Friday, 12.01.2007, 13:15, U2-205
Nils Mahrt (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, V
Friday, 12.01.2007, 14:30, U2-205
Andre Beineke (Bielefeld)
A Littlewood-Richardson rule for symmetrizable Kac-Moody algebras, VI
Friday, 12.01.2007, 15:45, U2-205
Jean-Marie Bois (Bielefeld)
A Littlewood-Richardson Rule for Symmetrizable Kac-Moody Algebras, VII
Friday, 19.01.2007, 13:15, U2-205
Philipp Fahr (Bielefeld)
Introduction to Orbits and Normal Varieties
Friday, 19.01.2007, 14:30, U2-205
Daiva Pucinskaite (Bielefeld)
Young Diagrams and Partitions
Friday, 19.01.2007, 15:15, U2-205
Philipp Fahr (Bielefeld)
The Variety Z and the Main Theorem
Friday, 26.01.2007, 13:15, U2-205
Artem Lopatin (Bielefeld)
The Quotient Z/H and Normality
Friday, 26.01.2007, 14:30, U2-205
Nils Mahrt (Bielefeld)
Nilpotent Pairs
Friday, 26.01.2007, 15:45, U2-205
Changchang Xi (Beijing)
Hochschild Cohomology of Artin Algebras under Stable Equivalence of Adjoint Type
Friday, 09.02.07, 13:15, U2-205
Roland Olbricht (Wuppertal)
Noris Desingularisierung und ihre Singularitäten
Friday, 09.02.07, 14:30, U2-205
Jean-Marie Bois (Bielefeld)
Stratification of Z
Friday, 09.02.07, 15:45, U2-205
Wilberd van der Kallen (Utrecht)
Normality through a simultaneous Frobenius splitting
Friday, 16.02.2007, 13:15, U2-205
Angela Holtmann (Bielefeld)
Dimension Formula for Strata
Friday, 16.02.2007, 14:30, U2-205
Andre Beineke (Bielefeld)
A Unique Representation for each Stratum
Friday, 16.02.2007, 15:45, U2-205
Rolf Farnsteiner (Bielefeld)
Support Varieties, p-Points and Jordan Type, I
Thursday, 05.04.2007, 13:15, V3-201
Jean-Marie Bois (Bielefeld)
Hopf Algebras and Group Schemes
Thursday, 05.04.2007, 14:30, V3-201
Daiva Pucinskaite (Bielefeld)
Algebras of Measures and Restricted Lie Algebras
Friday, 13.04.2007, 13:15, V5-148
Rolf Farnsteiner (Bielefeld)
Support Varieties, p-Points and Jordan Type, II
Friday, 13.04.2007, 14:30, V5-148
Artem Lopatin (Bielefeld/Omsk)
Restricted Lie Algebras
Friday, 20.04.2007, 13:15, V5-148
Rolf Farnsteiner (Bielefeld)
Support Varieties, p-Points and Jordan Type, III
Friday, 20.04.2007, 14:30, V5-148
Wilberd van der Kallen (Utrecht)
Schur functors and Grassmannians
Friday, 27.04.2007, 13:15, V5-148
Rolf Farnsteiner (Bielefeld)
Support Varieties, p-Points and Jordan Type, IV
Friday, 27.04.2007, 14:30, V5-148
Andrei Zelevinsky (Boston)
Mutations for quivers with potentials I
Wed, 23.05.2007, 16:15, V4-116
Lidia Angeleri-Hügel (Varese)
Tilting modules arising from ring epimorphisms
Wed, 23.05.2007, 17:30, V4-116
Andrei Zelevinsky (Boston)
Mutations for quivers with potentials II
Thu, 24.05.2007, 14:15, V3-204
Lidia Angeleri-Hügel (Varese)
Mittag-Leffler conditions on modules
Thu, 24.05.2007, 15:30, V3-204
Andrei Zelevinsky (Boston)
Mutations for quivers with potentials III
Fri, 25.05.2007, 13:15, V5-148
Claus Michael Ringel (Bielefeld)
The counterexamples of Chindris-Derksen-Weyman to Okounkov's log-concavity conjecture (Survey)
Fri, 25.05.2007, 14:30, V5-148
Andrei Zelevinsky (Boston)
Mutations for quivers with potentials IV
Wednesday, 30.05.2007, 16:15, V4-119
Justine Swierkot (Bielefeld)
The Pitman Transform I
Friday, 01.06.2007, 16:00, V5-148
Markus Schmidmeier (Boca Raton)
The relevance of Littlewood-Richardson coefficients for finite abelian groups
Mon, 04.06.2007, 14:15, V3-204
Angela Holtmann (Bielefeld)
The counterexamples of Chindris-Derksen-Weyman to Okounkov's log-concavity conjecture II
Mon, 04.06.2007, 15:15, V3-204
Artem Lopatin (Omsk/Bielefeld)
The counterexamples of Chindris-Derksen-Weyman to Okounkov's log-concavity conjecture III
Mon, 04.06.2007, 16:15, V3-204
Philipp Fahr (Bielefeld)
The counterexamples of Chindris-Derksen-Weyman to Okounkov's log-concavity conjecture IV
Mon, 04.06.2007, 17:15, V3-204
Idun Reiten (Trondheim)
Construction of 2-Calabi-Yau categories from preprojective algebras I
Fri, 15.06.2007, 15:00, V5-148
Idun Reiten (Trondheim)
Construction of 2-Calabi-Yau categories from preprojective algebras II
Fri, 15.06.2007, 16:00, V5-148
Rolf Farnsteiner (Bielefeld)
Frobenius Algebras and Co-Algebras
Thursday, 21.06.2007, 14:30, V3-201
Claus Michael Ringel (Bielefeld)
The Relevance of Commutative Frobenius Algebras
Thursday, 21.06.2007, 15:15, V3-201
Idun Reiten (Trondheim)
Cluster-Tilting for Hypersurfaces
Friday, 22.06.2007, 12:15, U2-113
Thorsten Holm (Magdeburg/Leeds)
Cluster Categories and Selfinjective Algebras
Friday, 22.06.2007, 14:15, V5-148
Guido Elsner (Bielefeld)
The Pitman Transform II - Brownian Motion
Friday, 22.06.2007, 15:30, V5-148
Holger Kösters (Bielefeld)
The Pitman Transform III - Stochastic Integration
Friday, 22.06.2007, 16:45, V5-148
Hendryk Pfeiffer (Vancouver)
Modular tensor categories from finite-dimensional algebras
Friday, 29.06.2007, 13:15, V3-201
Lutz Hille (Hamburg)
Tilting modules, generic $k[T]$-module homomorphisms and mutations
Friday, 29.06.2007, 14:30, V3-201
Guido Elsner (Bielefeld)
Brownian motion in Weyl chambers I. Brownian motion and Reflection principle
Monday, 02.07.2007, 15:00, T2-226
Holger Kösters (Bielefeld)
Brownian motion in Weyl chambers II. Karlin-McGregor-Formula and h-transform
Monday, 02.07.2007, 16:00, H16
Friedrich Götze (Bielefeld)
Brownian motion in Weyl chambers III. Littelmann paths and Brownian paths: review of results
Monday, 02.07.2007, 16:50, H16
Dieter Vossieck (Morelia, Mexiko)
Rigidity in matrix problems
Fri, 10.08.2007, 14:00 s.t., V3-201
Philipp Fahr (Bielefeld)
Infinite Gabriel-Roiter measures of the 3-Kronecker quiver
Fri, 10.08.2007, 15:15, V3-201
Hideto Asashiba (Shizuoka)
Root spaces of simple Lie algebras realized by Hall algebras of domestic canonical algebras
Fri, 31.08.2007, 14:00 (s.t.), V3-201
Steffen Oppermann (Köln)
Lower bounds for the representation dimension
Fri, 31.08.2007, 15:15, V3-201
Hideto Asashiba (Shizuoka)
Covering functors, orbit categories and derived equivalences
Fri, 31.08.2007, 16:30, V2-213
Bin Shu (Shanghai)
Modular representations of the ortho-symplectic supergroups
Fri, 19.10.2007, 13:15, T2-228
Grzegorz Bobinski (Torun)
On the zero-set of semi-invariants for canonical algebras
Fri, 19.10.2007, 14:30, T2-228
Claus Michael Ringel (Bielefeld)
The Gabriel-Roiter filtrations of the modules in a homogeneous tube
Friday, 02.11.2007, 13:15, T2-228
Lutz Hille (Bielefeld)
Stable and semi-stable representations
Friday, 02.11.2007, 14:30, T2-228
Grzegorz Bobinski (Torun/Bielefeld)
Moduli of Quiver Representations
Friday, 16.11.07, 13:15, T2-228
Nils Mahrt (Bielefeld)
Stability in Abelian Categories
Friday, 16.11.07, 14:30, T2-228
Daiva Pucinskaite (Bielefeld)
GIT-fans for quivers
Friday, 23.11.2007, 13:15, T2-228
Grzegorz Bobinski (Torun/Bielefeld)
Moduli of Quiver Representations II
Fri, 23.11.2007, 14:30, T2-228
Friedrich Goetze (Bielefeld)
Radon-Transformationen und ihre Anwendungen
Friday, 23.11.2007, 16:00, T2-228
Alexander Zimmermann (Amiens)
Some aspects of Djament's proof of the artinian conjecture on level 3
Friday, 30.11.2007, 13:15, T2-228
Grzegorz Bobinski (Torun/Bielefeld)
Moduli of quiver representations III
Friday, 30.11.2007, 14:30, T2-228
Nizar Demni (Bielefeld)
Path transformations of Brownian motions
Friday, 30.11.2007, 16:00, T2-228
Thorsten Weist (Wuppertal)
Localization in Kronecker moduli spaces and applications
Friday, 07.12.2007, 13:15, T2-228
Marek Bozejko (Bielefeld)
Positive definite functions on Weyl (Coxeter) groups with applications to quantum and classical probability
Friday, 07.12.2007, 16:00, T2-228
Birge Huisgen-Zimmermann (Santa Barbara)
Degenerations of finite dimensional representations
Monday, 17.12.2007, 14:15, V3-201
Claus Michael Ringel (Bielefeld)
The relevance of the representation dimension
Friday, 21.12.2007, 13:15, T2-228
Lutz Hille (Bielefeld)
Stable representations of Dynkin quivers
Friday, 21.12.2007, 14:30, T2-228
Lingling Yao (Bielefeld)
Auslander algebras
Friday, 11.01.2008, 13:15, T2-228
Daiva Pucinskaite (Bielefeld)
Representation dimension
Friday, 11.01.2008, 14:30, T2-228
Timo Rosnau (Bielefeld)
Representation dimension and radicals
Friday, 18.01.2008, 13:15, T2-228
Nils Mahrt (Bielefeld)
Representation dimension and global dimension
Friday, 18.01.2008, 14:30, T2-228
Andre Beineke (Bielefeld)
Finiteness of representation dimension
Friday, 25.01.2008, 13:15, T2-228
Grzegorz Bobinski (Bielefeld/Torun)
Radical embeddings and representation dimension, I
Friday, 25.01.2008, 14:30, T2-228
Claus Michael Ringel (Bielefeld)
Radical embeddings and representation dimension, II
Friday, 01.02.2008, 13:15, T2-228
Angela Holtmann (Bielefeld)
The dimension of a triangulated category
Friday, 01.02.2008, 14:30, T2-228
Angela Holtmann (Bielefeld)
Representation dimension of exterior algebras
Friday, 08.02.2008, 13:15, T2-228
Lingling Yao (Bielefeld)
A generalization of tilting modules
Friday, 08.02.2008, 14:30, T2-228
Karin Baur (Zuerich)
Modeling Richardson orbits via Delta-filtered modules for an Auslander algebra
Tuesday, 12.02.2008, 13:15, V2-210
Hideto Asashiba (Shizuoka)
Skew group categories and derived equivalences
Tuesday, 12.02.2008, 14:30, V2-210
Claus Michael Ringel (Bielefeld)
Iyama's finiteness theorem (via strongly quasi-hereditary algebras)
Friday, 11.04.2008, 13:15, U2-232
Rolf Farnsteiner (Bielefeld)
Complexity and representation dimension
Friday, 11.04.2008, 14:30, U2-232
Angela Holtmann (Bielefeld)
Complexity and the dimension of a triangulated category, I
Friday, 18.04.2008, 13:15, U2-232
Daiva Pucinskaite (Bielefeld)
Complexity and the dimension of a triangulated category, II
Friday, 18.04.2008, 14:30, U2-232
Jean-Marie Bois (Bielefeld)
Dimensions and vanishing of extensions
Friday, 18.04.2008, 15:45, U2-232
Andrei Zelevinsky (Boston)
Geometric realizations of cluster algebras of finite type
Wednesday, 23.04.2008, 14:00, D2-136
Nils Mahrt (Bielefeld)
Generic Non-vanishing and lower bounds for dimensions
Friday, 25.04.2008, 13:15, U2-232
Timo Rosnau (Bielefeld)
Exterior algebras and truncated polynomial rings
Friday, 25.04.2008, 14:30, U2-232
Lingling Yao (Bielefeld)
Coverings
Friday, 25.04.2008, 15:45, U2-232
David Jorgensen (Arlington)
Asymmetry over selfinjective algebras
Wednesday, 30.04.2008, 15:00, H6
Jose Antonio de la Pena (Mexico-City)
Accessible algebras and spectral analysis
Tuesday, 06.05.2008, 14:15, V3-201
Idun Reiten (Trondheim)
Some classes of 2-Calabi-Yau tilted algebras given by quivers with potentials
Tuesday, 06.05.2008, 15:30, V3-201
Steven Duplij (Koeln)
Quantum universal enveloping algebras and Pierce decomposition
Friday, 16.05.2008, 13:15, U2-232
Grzegorz Bobinski (Torun/Bielefeld)
Directing modules are regular in codimension one
Friday, 16.05.2008, 14:30, U2-232
Andrei Zelevinsky (Boston)
Geometric realization of cluster algebras of finite type, II
Friday, 23.05.2008, 13:15, U2-232
Yu Ye (Hefei/Paderborn)
Graded centers of some triangulated categories
Friday, 23.05.2008, 14:30, U2-232
Sefi Ladkani (Bonn)
Posets, derived equivalences, and mates of triangular matrix rings
Friday, 30.05.2008, 13:15, U2-232
Dong Yang (Cologne)
Derived equivalences from mutations of quiver potentials
Friday, 30.05.2008, 14:30, U2-232
Dave Benson (Aberdeen)
Modules of constant Jordan type
Friday, 13.06.08, 13:15, U2-232
Igor Burban (Bonn)
Tilting on degenerations of projective curves and gentle algebras
Friday, 13.06.08, 14:30, U2-232
Guido Elsner (Bielefeld)
Scan Algorithms and Hecke Algebras: Probabilistic Background
Wednesday, 18.06.08, 14:15, V3-204
Jean-Marie Bois (Bielefeld)
Basic Properties of Hecke Algebras
Wednesday, 18.06.08, 15:30, V3-204
Nils Mahrt (Bielefeld)
Hammocks and More Hammocks
Friday, 20.06.08, 13:15, U2-232
Rolf Farnsteiner (Bielefeld)
Jordan Types and AR-Sequences: Background and Examples
Friday, 20.06.08, 14:30, U2-232
Nils Mahrt (Bielefeld)
Metropolis algorithms and Hecke algebras: Basic properties of finite reflection groups
Wednesday, 02.07.2008, 14:15, V3-201
Guido Elsner (Bielefeld)
Metropolis algorithms and Hecke algebras: Stationary distributions on finite reflection groups
Wednesday, 02.07.2008, 15:30, V3-201
Daiva Pucinskaite (Bielefeld)
Metropolis algorithms and Hecke algebras:
Iwahori-Hecke algebras and Metropolis walks on W

Wednesday, 09.07.2008, 14:15, V3-201
Holger Kösters (Bielefeld)
Metropolis algorithms and Hecke algebras: Hypercubes and dihedral groups
Wednesday, 09.07.2008, 15:30, V3-201
Thomas Brüstle (Sherbrooke)
Christoffel words, Markoff numbers and the once-punctured torus
Wednesday, 09.07.2008, 16:45, V3-201
Grzegorz Bobinski (Bielefeld/Torun)
On ext-subschemes of module varieties
Friday, 11.07.2008, 13:15, U2-232
Andre Beineke (Bielefeld)
Metropolis algorithms and Hecke algebras: Symmetric groups I
Friday, 11.07.2008, 14:30, U2-232
Guido Elsner (Bielefeld)
Metropolis algorithms and Hecke algebras: Symmetric groups II
Wednesday, 16.07.2008, 14:15, V3-201
Pu Zhang (Shanghai)
Gorenstein Homological Algebras
Wednesday, 16.07.08, 15:30, V3-201
Rolf Farnsteiner (Bielefeld)
Jordan types and AR-Sequences: Invariants
Wednesday, 16.07.08, 16:45, V3-201
Pu Zhang (Shanghai)
Gorenstein derived categories
Friday, 18.07.08, 13:15, U2-232
Rolf Farnsteiner (Bielefeld)
Jordan types and AR-Sequences: Carlson modules and endo-trivial modules
Friday, 18.07.08, 14:30, U2-232
Henning Krause (Paderborn)
Die Darstellungsdimension einer endlichdimensionalen Algebra
Friday, 18.07.2008, 18:00, V3-201
Markus Reineke (Wuppertal)
Modulräume von Darstellungen
Monday, 11.08.2008, 11:00, V3-201
Jan Schröer (Bonn)
Offene Bahnen in nilpotenten Varietäten
Tuesday, 12.08.2008, 11:00, V3-201
Rolf Farnsteiner (Bielefeld)
Trägerräume, Auslander-Reiten-Köcher und Darstellungstyp
Tuesday, 12.08.2008, 14:00, V3-201
Karin Baur (Zürich)
Geometrische Konstruktion von Cluster-Kategorien
Thursday, 21.08.2008, 16:00, V3-201
Justyna Kosakowska (Torun)
On Lie algebras associated with representation directed algebras
Tuesday, 02.09.2008, 13.15, U5-133
Piotr Malicki (Torun)
Degenerations in the additive categories of almost cyclic coherent AR components
Tuesday, 02.09.2008, 14.30, U5-133
Oksana Yakimova (Erlangen)
On symmetric invariants of centralisers
Friday 26.09.2008, 13:15, U5-133
Thorsten Weist (Wuppertal)
Tree modules of the Kronecker quiver
Friday 26.09.2008, 14:30, U5-133
Rolf Farnsteiner (Bielefeld)
Auslander-Reiten components containing relatively projective modules
Friday 26.09.2008, 15:45, U5-133
Hugh Thomas (New Brunswick / MPIM)
"Dual" Garside structures for finite-type Artin groups via quiver representations
Friday 17.10.2008, 13:15, V5-148
Markus Schmidmeier (Florida / Bielefeld)
Tableaux describing subgroup embeddings
Friday 17.10.2008, 15:15, V5-148
Claus Michael Ringel (Bielefeld)
Schlaefli's double-six theorem via representations of quivers
Friday 17.10.2008, 16:30, V5-148
Dieter Vossieck (UNAM Mexico / Bielefeld)
Remarks on commutative complex Lie groups
Friday 24.10.2008, 13:15, V5-148
Markus Schmidmeier (Florida / Bielefeld)
Borcherds-Kac-Moody algebras, an overview
Friday 24.10.2008, 14:30, V5-148
Fan Xu (Beijing/Max-Planck Institute)
On triangulated categories and enveloping algebras
Friday 07.11.2008, 13:15, V5-148
Jean-Marie Bois (Bielefeld)
Borcherds algebras I - Weyl groups, root systems
Friday 07.11.2008, 14:30, V5-148
Lutz Hille (Muenster)
The dual of the direct product might be the direct sum
Friday 07.11.2008, 15:45, V5-148
Markus Schmidmeier (Florida/Bielefeld)
Tableaux describing submodule embeddings II
Friday 07.11.2008, 16:20, V5-148
Qunhua Liu (Koeln)
Constructing tilting objects from recollements
Friday 21.11.2008, 13:15, V5-148
Angela Holtmann (Bielefeld)
Borcherds algebras II - integrable modules, characters
Friday 21.11.2008, 14:30, V5-148
Audrey Moore (Florida/Bielefeld)
The Auslander and Ringel-Tachikawa Theorem for submodule embeddings
Friday 21.11.2008, 15:45, V5-148
Polyxeni Lamprou (Bielefeld)
A path model for Borcherds algebras I
Fr, 5.12.2008, 13:15, V5-148
BIREP (Bielefeld)
Nakajima quiver varieties – review on some of the main topics presented at the workshop in Bonn
Fr, 5.12.2008, 14:30, V5-148
a series of expository mini-lectures (10 – 20 minutes), by several speakers
  • A. Lopatin (Bielefeld/Omsk): The quotients V//G and V/χG
  • J.M. Bois (Bielefeld): Symplectic structures and the moment map
  • A. Holtmann (Bielefeld): Double quivers with feet
  • G. Bobinski (Bielefeld/Torun): The map π: M(v,w)→M0(v,w)
  • D. Vossieck (Bielefeld/Morelia): The Steinberg variety
Polyxeni Lamprou (Bielefeld)
A path model for Borcherds algebras II
Friday 12.12.2008, 13:15, V3-201
Artem Lopatin (Bielefeld)
On minimal generating systems for matrix O(3)-invariants
Friday 12.12.2008, 14:30, V3-201
BIREP (Bielefeld):
Nakajima quiver varieties – review on some of the main topics presented at the workshops in Bonn and Paderborn
Friday,12.12.2008, 15:45, V3-201
a series of expository mini-lectures (10 – 20 minutes), by several speakers
  • C.M. Ringel (Bielefeld): Why w?
  • G. Bobinski (Bielefeld/Torun): Why qH?
Dieter Vossieck (UNAM Mexico / Bielefeld)
Quantised Borcherds algebras and Hall algebras
Friday 19.12.2008, 13:15, V5-148
Grzegorz Bobinski (Bielefeld)
The indecomposable objects in the bounded homotopy category of projective modules over gentle algebras
Friday 19.12.2008, 14:30, V5-148
Claus Michael Ringel (Bielefeld)
The ADE-chain: Nakayama algebras with Loewy length three
Friday 19.12.2008, 15:45, V5-148
Markus Severitt (Bielefeld)
Representations of the algebraic group Aut(k[t]/tp)
Friday 09.01.2009, 13:15, V5-148
Grzegorz Bobinski (Bielefeld)
Nakajima Workshop Review: G-equivariant bundles
Friday 09.01.2009, 14:30, V5-148
Stephen Doty (Chicago/Bielefeld)
Introduction to Schur algebras
Friday 23.01.09, 13:15, V5-148
Stefan Wolf (Paderborn)
The composition algebra at q=0 and the composition monoid
Friday 23.01.09, 14:30, V5-148
Stephen Doty (Chicago/Bielefeld)
Introduction to Schur algebras II
Friday 06.02.09, 13:15, V5-148
Nils Mahrt (Bielefeld)
Exceptional components of wild hereditary algebras
Friday 06.02.09, 14:30, V5-148
Herbert Abels (Bielefeld)
Generating semi-simple groups by two compact tori
Friday 13.02.09, 13:15, V5-148
Björn Hoffmann (Bielefeld)
Schofield-Induktion bei darstellungsgerichteten Algebren
Fri, 20.03.2009, 13:15, V5-148
Timo Rosnau (Bielefeld)
Coefficient quivers of maximal representations over representation-directed algebras
Fri, 20.03.2009, 14:30, V5-148
Martina Schulz (Bielefeld)
Peaks of some representations of representation directed algebras
Fr, 17.04.2009, 13:15, U2-232
Stefan Höppner (Bielefeld)
The top-socle-difference for representation finite algebras
Fr, 17.04.2009, 14:30, U2-232
Alexandra Bartsch (Bielefeld)
A connection between concealed algebras of type E˜6 and E˜7 and representation finite algebras
Fr, 17.04.2009, 15:45, U2-232
Flavio Coelho (Sao Paulo)
Contravariantly finite subcategories closed under predecessors
Fri, 24.04.2009, 13:15, U2-232
Daiva Pucinskaite (Bielefeld)
Connections between quasi-hereditary algebras and local self-injective algebras
Fri, 24.04.2009, 14:30, U2-232
Otto Kerner (Düsseldorf)
Concealed algebras
Fri, 8.5.2009, 13:15, U2-232
Daiva Pucinskaite (Bielefeld)
Connections between quasi-hereditary algebras and local self-injective algebras II
Fri, 15.5.2009, 13:15, U2-232
Artem Lopatin (Omsk/Bielefeld)
A minimal generating system for invariants of several bilinear forms in dimension two case
Fri, 15.5.2009, 14:30, U2-232
David Jorgensen (University of Texas at Arlington)
On tensor products of totally acyclic complexes of finitely generated free modules
Fri, 22.05.2009, 13:15, U2-232
Dan Zacharia (Syracuse)
Auslander-Reiten theory for modules of finite complexity over selfinjective algebras
Fri, 22.05.2009, 14:30, U2-232
Alireza Nasr-Isfahani (Bielefeld)
Hall polynomials for Nakayama algebras
Fri, 22.05.2009, 15:45, U2-232
Nan Gao (Shanghai/Bielefeld)
Gorenstein derived categories and Gorenstein tilting modules
Fri, 12.6.2009, 13:15, U2-232
Jan Stovicek (Trondheim)
A counterexample to the telescope conjecture of global dimension 2
Fri, 12.6.2009, 14:30, U2-232
Claus Michael Ringel (Bielefeld)
Indecomposables live in all smaller lengths (after Bongartz)
Fri, 12.6.2009, 15:45, U2-232
Dieter Happel (Chemnitz)
Auslander generators of iterated tilted algebras
Fri, 19.06.2009, 12:00-13:30, U2-232
David Jorgensen (Arlington)
On constructing resolutions over rings of radical cube zero
Fri, 19.06.2009, 13:45-14:45, U2-232
Angela Holtmann (Bielefeld)
(More) Counterexamples to Okounkov's log concavity conjecture
Fri, 19.06.2009, 15:15-16:15, U2-232
Idun Reiten (Trondheim)
Quasihereditary algebras associated with reduced words in Coxeter groups
Fri, 19.06.2009, 16:30-18:00, U2-232
Dong Yang (Paris)
Mutations and equivalences
Fri, 3.7.2009, 13:15, U2-232
Andre Beineke (Bielefeld)
Mutation orbits of triples with Markov constant 4
Fri, 3.7.2009, 14:30, U2-232
Dieter Vossieck (Bielefeld)
Ray categories I
Fri, 3.7.2009, 15:45, U2-232
Dan Zacharia (Syracuse)
More on finite complexity
Fri, 10.7.2009, 13:15, U2-232
David Jorgensen (Arlington)
More on constructing resolutions over rings of radical cube zero
Fri, 10.7.2009, 14:30, U2-232
Dieter Vossieck (Bielefeld)
Ray categories II
Fri, 10.7.2009, 15:45, U2-232
Dong Yang (Paris)
From triangulated categories to cluster algebras – after Palu
Fri, 17.7.2009, 13:15, U2-232
Dieter Vossieck (Bielefeld)
Ray categories III
Fri, 17.7.2009, 14:30, U2-232
Dong Yang (Paris)
A brief introduction to derived categories over differential graded algebras
Fri, 24.7.2009, 13:15, U2-232
Dieter Vossieck (Bielefeld)
Reading course on ray categories: Invariance of the fundamental group under reduction
Mon, 7.9.2009, 13:15, V3-204
Andre Beineke (Bielefeld)
Reading course on ray categories: Tackles
Mon, 7.9.2009, V3-204
Nils Mahrt (Bielefeld)
Reading course on ray categories: Reduction lemma
Tue, 8.9.2009, 13:15, V3-204
Dieter Vossieck (Bielefeld)
Reading course on ray categories: Reducing filtrations, freeness of the fundamental group
Tue, 8.9.2009, V3-204
Angela Holtmann (Bielefeld)
Reading course on ray categories: Roiter's vanishing theorem
Tue, 8.9.2009, V3-204
Dirk Kussin (Bielefeld)
Reading course on ray categories: Interval-finiteness – preparation
Wed, 9.9.2009, 13:15, V3-204
Grzegorz Bobinski (Bielefeld/Torun)
Reading course on ray categories: Interval-finiteness – conclusion
Wed, 9.9.2009, V3-204
Dieter Vossieck (Bielefeld)
Ray categories IV
Fri, 11.9.2009, 13:15, V3-204
Artem Lopatin (Bielefeld)
A minimal generating system for semi-invariants of quivers for dimension (2,…,2)
Fri, 11.9.2009, 14:30, V3-204
Dirk Kussin (Bielefeld)
Categories of vector bundles and invariant subspaces of nilpotent operators I
Mon, 19.10.2009, 14:15, V4-119
Markus Severitt (Bielefeld)
Simple Representations of Aut(k[x1,…,xn]/(x1p,…,xnp))
Mon, 26.10.2009, 14:15, V4-119
Dirk Kussin (Bielefeld)
Categories of vector bundles and invariant subspaces of nilpotent operators II
Mon, 26.10.2009, 16:00, V4-119
Dirk Kussin (Bielefeld)
Categories of vector bundles and invariant subspaces of nilpotent operators III
Mon, 2.11.2009, 14:15, V4-119
Dieter Vossieck (Bielefeld)
Multiplicative bases for subspace-finite vector space categories I
Mon, 2.11.2009, 16:00, V4-119
Helmut Lenzing (Paderborn)
A case study; pattern recognition versus proofs
Mon, 9.11.2009, 14:15 Uhr, V4-119
Dieter Vossieck (Bielefeld)
Multiplicative bases for subspace-finite vector space categories II
Mon, 9.11.2009, 16:00 Uhr, V4-119
Nathan Broomhead (Hannover)
Dimer models and NCCRs
Mon, 16.11.2009, 14:15, V4-119
Dieter Vossieck (Bielefeld)
Multiplicative bases for subspace-finite vector space categories III
Mon, 16.11.2009, 15:30, V4-119
Jan Schröer (Bonn)
Bricks over preprojective algebras
Mon, 23.11.2009, 14:15, V4-119
Lutz Hille (Münster)
Dimers and quivers I
Mon, 30.11.2009, 14:15, V4-119
Dieter Vossieck (Bielefeld):
Multiplicative Bases for subspace-finite vector space categories IV
Mon, 07.12.2009, 14:15, V4-119
Fan Xu (Bielefeld):
Hall algebras associated to odd periodic triangulated categories
Mon, 07.12.2009, 15:45, V4-119
Markus Schmidmeier (Florida Atlantic University, Boca Raton, USA)
Hall polynomials via automorphisms of short exact sequences
Montag, 14.12.2009, 14:15, V4-119
Dirk Kussin (Bielefeld)
Categories of vector bundles and invariant subspaces of nilpotent operators IV
Montag, 14.12.2009, 15:45, V4-119
Xiao-Wu Chen (Paderborn)
The stable monomorphism category of a Frobenius category
Wednesday, January 6, 2010, 13:15, V4-119
Lingling Yao (Bielefeld)
The torsionless modules of some cluster-tilted algebras
Wednesday, January 6, 2010, 14:30, V4-119
Nills Mahrt (Bielefeld)
TBA
Wednesday, January 6, 2010, 15:45, V4-119
Karin Baur (Zuerich)
Cluster Akgebren und Cluster Kategorien
07.01.2010, 14:00, V3-201
Igor Burban (Bonn)
Vektorbuendel auf Entartungen ellipischer Kurven und Yang-Baxter Gleichungen
08.01.2010, 12:00, V3-201
Christof Geiss (Mexico DF)
Cluster algebra structures for unipotent cells and preprojective algebras
08.01.2010, 10:00, V3-201
Lutz Hille (M"unster)
On the irreducible components in the complement of the Richardson orbit
Monday, January 18, 2010, 14:15, V4-119
Dieter Vossieck (Bielefeld)
Dimer models I
Monday, January 18, 2010, 15:30, V4-119
Dirk Kussin (Bielefeld)
Helices on del Pezzo surfaces and tilting Calabi-Yau algebras
Monday, January 25, 2010, 14:15, V4-119
Lutz Hille (M"unster)
Dimer models II
Monday, January 25, 2010, 15:45, V4-119
Grzegorz Bobinski (Torun)
Geometry of module varieties over quasi-tilted algebras
22.01.2010, 12:00, V3-201
Hideto Asashiba (Shizuoka)
Grothendieck construction and derived equivalences
Wednesday, February 17, 2010, 13:15, V4-119
Rafael Bocklandt (Newcastle)
Calabi-Yau algebras and quiver polyhedra
Wednesday, February 17, 2010, 14:30, V4-119
Karsten Dietrich (Paderborn)
The representation type of an EI-category algebra
Wednesday, February 17, 2010, 16:00, V4-119
R"udiger G"obel (Duisburg-Essen)
Absolute E-rings
Wednesday, February 17, 2010, 17:15, V4-119
Justyna Kosakowska (Torun)
Finite Coxeter groups
Wednesday, February 24, 2010, 14:15, V2-200
Justyna Kosakowska (Torun)
Error-correcting codes
Wednesday, February 24, 2010, 15:00, V2-200
Estanislao Herscovich (Paderborn)
Cluster algebras I
Friday, April 16, 2010, 13:15, T2-220
Karsten Dietrich (Bielefeld)
Cluster algebras II
Friday, April 16, 2010, 15:00, T2-220
Guodong Zhou (Paderborn)
Cluster categories
Friday, April 23, 2010, 13:15, T2-220
Jue Le (Paderborn)
Cluster-tilted algebras
Friday, April 23, 2010, 14:30, T2-220
Matthias Kuenzer (Aachen/Stuttgart)
From n-triangles to Heller triangulated categories (after S. Thomas)
Friday, April 23, 2010, 15:45, T2-220
Changchang Xi (Beijing)
Derived equivalences and cohomological approximations
Friday, April 23, 2010, 17:00, T2-220
Zhi Wei Li (Bielefeld)
Cluster-tilting in a general framework
Friday, April 30, 2010, 13:15, T2-220
Zhe Han (Bielefeld)
From triangulated categories to cluster algebras
Friday, April 30, 2010, 14:30, T2-220
Andrei Zelevinsky (Boston)
Cluster algebras via quivers with potentials
Friday, April 30, 2010, 16:00, T2-220
Philip Linke (Bielefeld)
Mutation in triangulated categories
Friday, May 21, 2010, 13:15, T2-220
Claudia K"ohler (Bielefeld)
Triangulated orbit categories
Friday, May 21, 2010, 14:30, T2-220
David Ploog (Berlin)
Exceptional collections, spherical twists and Coxeter functors
Friday, May 21, 2010, 16:00, T2-220
Reiner Hermann (Bielefeld)
Acyclic Calabi-Yau categories
Friday, June 4, 2010, 13:15, T2-220
Xiao-Wu Chen (Bielefeld)
Cluster categories of canonical algebras
Friday, June 4, 2010, 14:30, T2-220
Claire Amiot (Bonn)
Algebras of cluster type $\tilde{A}_n$
Friday, June 4, 2010, 16:00, T2-220
Xiao-Wu Chen (Bielefeld/Paderborn)
TBA
Friday, June 18, 2010, 13:15, T2-220
Janine Bastian (Hannover)
Derived equivalences for cluster-tilted algebras of Dynkin type D
Friday, June 18, 2010, 14:30, T2-220
Steffen Oppermann (K"oln)
Stable categories of higher preprojective algebras
Friday, June 18, 2010, 16:00, T2-220
Claudia K"ohler (Bielefeld/Paderborn)
Thick subcategories of self-injective algebras
Friday, June 25, 2010, 14:30, T2-220
Adam-Christiaan van Roosmalen (MPI-Bonn)
Hereditary categories with Serre duality generated by preprojectives
Friday, June 25, 2010, 16:00, T2-220
Sefi Ladkani (Bonn)
Perverse equivalences, mutations and applications
Friday, July 9, 2010, 13:15, T2-220
Dan Zacharia (Syracuse)
On Auslander-Reiten components for selfinjective algebras I
Friday, July 9, 2010, 14:30, T2-220
Otto Kerner (Bonn)
On Auslander-Reiten components for selfinjective algebras II
Friday, July 9, 2010, 16:00, T2-220
Julia Sauter (Leeds)
On quiver flag varieties
Friday, July 16, 2010, 13:15, T2-220
Selene Sanchez (K"oln)
The graded Lie algebra on the Hochschild cohomology of a modular group algebra
Friday, July 16, 2010, 14:30, T2-220
Gregorz Bobinsky (Torun)
The gentle algebras derived equivalent to the cluster tilted algebras
Friday, July 16, 2010, 16:00, T2-220
Guodong Zhou (Bielefeld)
The Batalin-Vilkovisky structure over the Hochschild cohomology ring of a symmetric algebra
July 23, 2010, 13:15, T2-220
Ivo Dell'Ambrogio (Singapore)
On support varieties for (G-)C*-algebras
July 23, 2010, 14:30, T2-220
Javad Asadollahi (Isfahan)
Cohomology theories based on flat modules
July 23, 2010, 16:00, T2-220
Andrew Hubery (Leeds)
Tangent spaces, Massey Products, and Applications to Representation Theory
July 16, 2010, 11:00, V5-227
Rasool Hafezi (Isfahan)
Homotopy categories arising from quiver representations
Friday, September 03, 2010, 13:15, V2-216
Xiaojin Zhang (Nanjing)
The existence of maximal orthogonal subcategories
Friday, September 03, 2010, 14:30, V2-216
Hideto Asashiba (Shizuoka)
The "derived category" of a lax functor
Friday, September 24, 2010, 10:00, V2-216
Dieter Happel (Chemnitz)
Some open problems for modules of projective dimension two and algebras of global dimension two.
Friday, October 8, 2010, 11:00-12:00, V3-201
Idun Reiten (Trondheim)
2-Calabi-Yau categories and algebras of global dimension 2.
Friday, October 8, 2010, 13:30-15:00, V3-201
Steffen Oppermann (Trondheim)
Cluster categories for algebras of global dimension 2 (aka Amiot-cluster categories) and cluster equivalence.
Friday, October 8, 2010, 15:30-16:30, V3-201
Winfried Bruns (Osnabrueck)
Projective dimension 2 in commutative noetherian rings.
Friday, October 8, 2010, 17:00-18:00, V3-201
Sefi Ladkani (Paris)
1-2-3 Global dimension.
Saturday, October 9, 2010, 09:00-10:30, V3-201
Helmut Lenzing (Paderborn)
The noncommutative projective spectrum of a free or preprojective algebra.
Saturday, October 9, 2010, 11:00-12:00, V3-201
Ed Green (Blacksburg)
Basic Tools for Computational Homological Algebra
Friday, October 22, 2010, 13:15, H8
Edward Green (Blacksburg)
Right Gröbner bases, Cohn's theorem and resolutions
Friday, October 29, 2010, 13:00, H8
Andrea Solotar (Buenos Aires)
Homological dimension of quantum generalized Weyl algebras
Friday, October 29, 2010, 14:10, H8
Yong Jiang (Bonn)
Hall algebra approach to Drinfeld's presentation of quantum loop algebras
Friday, October 29, 2010, 15:40, H8
Edward Green (Blacksburg)
Projective resolutions
Friday, November 5, 2010, 13:00, H8
Edward Green (Blacksburg)
Projective resolutions
Friday, November 12, 2010, 13:15, H8
Andrei Marcus (Cluj-Napoca)
Crossed products, Brauer groups and Clifford classes
Friday, November 12, 2010, 15:00, H8
Markus Severitt (Bielefeld)
Simple Representations of some Generalized Group Schemes of Cartan Type
Friday, November 19, 2010, 13:15, H8
Martin Kalck (Bonn)
Gentle algebras and generalized singularity categories
Friday, November 19, 2010, 15:00, H8
Felix Dietlein (Koeln)
Spectral Properties in Auslander-Reiten Theory encoded by Preprojective Algebras
Friday, November 26, 2010, 13:15, H8
Michael Barot (Mexico City)
News about constructions of Lie algebras
Friday, November 26, 2010, 14:30, H8
Chrysostomos Psaroudakis (Ioannina)
Recollements of Abelian Categories and Homological Dimensions
Friday, December 3, 2010, 13:15, H8
Jan Stovicek (Bielefeld)
A negative solution to Rosicky's problem
Friday, December 3, 2010, 14:30, H8
Adam-Christiaan van Roosmalen (Bonn)
Infinite version of cyclic quivers and tubes
Friday, December 3, 2010, 15:45, H8
Philipp Lampe (Bielefeld)
Quantum cluster algebras and the dual canonical basis
Friday, January 14, 2011, 14:00, H8
Tobias Dyckerhoff (Yale)
Matrix factorization categories of isolated hypersurface singularities
Friday, January 14, 2011, 15:15, H8

Last modified: 7-1-2011