The BIREP Seminar (Bielefeld)

1. Academic year 2018/2019
   • July 5, 2019, Estanislao Herscovich, The cohomology of the Fomin-Kirillov algebra on 3 generators
2. Academic year 2013/2014
   • July 4, 2014, Alex Martsinkovsky, Direct summands of homological functors
3. Academic year 2011/2012
   • December 2, 2011, Artem Lopatin, Matrix identities with forms
   • November 25, 2011, Gena Puninski, An introduction to the Ziegler spectrum
   • November 18, 2011, Sarah Scherotzke, The integral cluster category
   • November 4, 2011, Yong Jiang, Parametrizations of canonical bases and irreducible components of nilpotent varieties
   • October 28, 2011, Anna-Louise Paasch, Monoid algebras of projection functors
   • October 21, 2011, Robert Marsh, Cluster presentations of reflection groups
   • October 21, 2011, Philipp Lampe, Cluster theory and Lusztig's canonical basis
   • October 21, 2011, Jesse Burke, Finite injective dimension over rings with Noetherian cohomology
4. Academic year 2010/2011
   • July 22, 2011, Philipp Lampe, The simple transitivity of the braid group action and noncrossing loops (after Bessis)
   • July 21, 2011, Sefi Ladkani, Derived equivalence classification of the gentle algebras arising from surface triangulations
   • July 20, 2011, Dirk Kussin, Transitivity of the braid group action for Coxeter groups (after Igusa-Schiffler)
   • July 20, 2011, Claudia Köhler, The connection between braid group actions on exceptional sequences, thick subcategories, and non-crossing partitions
   • July 20, 2011, Ragnar-Olaf Buchweitz, Variations on a Theorem of Orlov
   • July 15, 2011, Mark Prest, Superdecomposable pure-injectives over tubular algebras
   • July 15, 2011, Ivo Dell'Ambrogio and Greg Stevenson, The derived category of a graded commutative noetherian ring
   • July 1, 2011, Dolors Herbera, The combinatorics around an infinite idempotent matrix
5. Academic year 2009/2010
   • July 23, 2010, Guodong Zhou, The Batalin-Vilkovisky structure over the Hochschild cohomology ring of a symmetric algebra
   • July 16, 2010, Selene Sanchez, The graded Lie algebra on the Hochschild cohomology of a modular group algebra
   • July 16, 2010, Julia Sauter, On quiver flag varieties
   • July 16, 2010, Andrew Hubery, Tangent spaces, Massey products, and applications to representation theory
   • July 9, 2010, Dan Zacharia, On Auslander-Reiten components for selfinjective algebras
   • July 9, 2010, Sefi Ladkani, Perverse equivalences, mutations and applications
6. Academic year 2008/2009
   • September 11, 2009, Dieter Vossieck, Ray categories, IV
   • July 24, 2009, Dong Yang, A brief introduction to derived categories over differential graded algebras
   • July 17, 2009, Dieter Vossieck, Ray categories, III
   • July 17, 2009, Dong Yang, From triangulated categories to cluster algebras - after Palu
   • July 10, 2009, Dieter Vossieck, Ray categories, II
   • July 10, 2009, Dan Zacharia, More on finite complexity
   • July 3, 2009, Dieter Vossieck, Ray categories, I
   • July 3, 2009, Andre Beineke, Mutation orbits of triples with Markov constant 4
   • July 3, 2009, Dong Yang, Mutations and equivalences
   • June 19, 2009, Idun Reiten, Quasihereditary algebras associated with reduced words in Coxeter groups
   • June 19, 2009, Dieter Happel, Auslander generators of iterated tilted algebras
   • June 12, 2009, Jan Šťovíček, A counterexample to the telescope conjecture of global dimension 2
   • May 22, 2009, Dan Zacharia, Auslander-Reiten theory for modules of finite complexity over selfinjective algebras
   • May 22, 2009, David Jorgensen, On tensor products of totally acyclic complexes of finitely generated free modules
   • May 8, 2009, Otto Kerner, Concealed algebras
   • April 24, 2009, Flávio Ulhoa Coelho, Contravariantly finite subcategories closed under predecessors
   • February 6, 2009, Nils Mahrt, Exceptional components of wild hereditary algebras
   • February 6, 2009, Stephen Doty, Introduction to Schur algebras, II
   • January 23, 2009, Stefan Wolf, The composition algebra at q=0 and the composition monoid
   • January 23, 2009, Stephen Doty, Introduction to Schur algebras, I
   • January 9, 2009, Markus Severitt, Representations of the algebraic group Aut(k[t]/t^p)
   • December 19, 2008, Dieter Vossieck, Quantised Borcherds algebras and Hall algebras
   • November 21, 2008, Audrey Moore, The Auslander and Ringel/Tachikawa Theorem for submodule embeddings
   • November 7, 2008, Lutz Hille, The dual of the direct product might be the direct sum
   • November 7, 2008, Fan Xu, On triangulated categories and enveloping algebras
   • October 17, 2008, Hugh Thomas, "Dual" Garside structures for finite-type Artin groups via quiver
7. Academic year 2007/2008
   • September 26, 2008, Rolf Farnsteiner, Auslander-Reiten components containing relatively projective modules
   • July 16, 2008, Pu Zhang, Gorenstein homological algebra
   • June 20, 2008, Rolf Farnsteiner, Jordan Types and AR-Sequences: Background and Examples
   • June 20, 2008, Nils Mahrt, Hammocks and more hammocks
   • May 23, 2008, Yu Ye, Graded centers of some triangulated categories
   • May 23, 2008, Andrei Zelevinsky, Geometric realization of cluster algebras of finite type, II
   • May 6, 2008, Idun Reiten, Some classes of 2-Calabi-Yau tilted algebras given by quivers with potentials
   • May 6, 2008, Jose Antonio de la Pena, Accessible algebras and spectral analysis
   • April 30, 2008, David Jorgensen, Asymmetry over selfinjective algebras
   • April 23, 2008, Andrei Zelevinsky, Geometric realizations of cluster algebras of finite type
   • April 18, 2008, Jean-Marie Bois, Dimensions and vanishing of extensions
   • April 18, 2008, Daiva Pucinskaite, Complexity and the dimension of a triangulated category, II
   • April 18, 2008, Angela Holtmann, Complexity and the dimension of a triangulated category, I
   • April 11, 2008, Rolf Farnsteiner, Complexity and representation dimension
   • April 11, 2008, Claus Michael Ringel, Iyama's finiteness theorem (via strongly quasi-hereditary algebras)
   • February 12, 2008, Hideto Asashiba, Skew group categories and derived equivalences
   • February 12, 2008, Karin Baur, Modeling Richardson orbits via Delta-filtered modules for an Auslander algebra
   • February 8, 2008, Lingling Yao, A generalization of titling modules
   • February 1 & 8, 2008, Angela Holtmann, The dimension of a triangulated category
   • February 1, 2008, Claus Michael Ringel, Radical embeddings and representation dimension
   • January 25, 2008, Andre Beineke, Finiteness of representation dimension
   • January 18, 2008, Nils Mahrt, Representation dimension and global dimension
   • January 18, 2008, Timo Rosnau, Representation dimension and radicals
   • January 11, 2008, Daiva Pucinskaite, Representation dimension
   • January 11, 2008, Lingling Yao, Auslander algebras
   • December 7, 2007, Thorsten Weist, Localization in Kronecker moduli spaces and applications
   • November 30, 2007, Alexander Zimmermann, Some aspects of Djament's proof of the artinian conjecture on level 3
   • November 23, 2007, Daiva Pucinskaite, GIT-cones for quivers
   • November 16, 2007, Nils Mahrt, Stability in abelian categories
   • November 2, 2007, Claus Michael Ringel, The Gabriel-Roiter filtrations of the modules in a homogeneous tube