(see our archive of seminars for talks from previous semesters)
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
Nils Mahrt (Bielefeld):
Full subcategories of hereditary catgories which are tubes 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 (Münster):
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
Grzegorz Bobinski (Torun):
Geometry of module varieties over quasi-tilted algebras 22.01.2010, 12:00, V3-201
Dirk Kussin (Bielefeld):
Helices on del Pezzo surfaces and tilting Calabi-Yau algebras Monday, January 25, 2010, 14:15, V4-119
Lutz Hille (Münster):
Dimer models II Monday, January 25, 2010, 15:45, V4-119
Hideto Asashiba (Shizuoka):
Grothendieck construction and derived equivalences Wednesday, February 17, 2010, 13:15, V4-119
Claus Michael Ringel (Bielefeld)
Am Aschermittwoch - ist alles vorbei.
32 years Representation Theory in Bielefeld.
Wednesday, February 17, 2010, 13:00, 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