Termine (Wintersemester 2009/10) |

- 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[x_{1},…,x_{n}]/(x_{1}^{p},…,x_{n}^{p}))

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- 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

(Kussin, Ringel, Vossieck)