徐 斐 (XU, Fei)

PhD (Minnesota 2006)
Beatriu de Pinós Researcher
Member of Barcelona Algebraic Topology Group

E-Contact

SURNAME<AT>mat<DOT>uab<DOT>cat
Office:  +34 93 581 29 12
Fax:  +34 93 581 27 90
http://www.mat.uab.cat/~xu/

Physical address

Departament de Matemàtiques
Universitat Autònoma de Barcelona
C1/-162 Edifici C Facultat Ciènces
08193 Bellaterra
Barcelona
España/Spain


Research insterests: representations and cohomology of small categories and algebras (especially finite groups, related categories and their algebras); relevant topics in algebraic topology and homological algebra  

Papers and preprints
   1. Representations of categories and their applications, Journal of Algebra 317 (2007), 153-183 link to online publication.
   2. On the cohomology rings of small categories , Journal of Pure and Applied Algebra 212 (2008), 2555-2569 link to online publication.
   3. Hochschild and ordinary cohomology rings of small categories , Advances in Mathematics 219 (2008), 1872-1893 link to online publication.
   4. Tensor structure on kC-mod and cohomology , Proceedings of the Edinburgh Mathematical Society (Skye 2009 Conference Proceedings), to appear.
   5. On local categories of finite groups , Mathematische Zeitschrift, to appear link to online publication.
   6. Becker-Gottlieb transfer for Hochschild cohomology , preprint 2011.
   7. Support varieties for transporter category algebras , preprint 2011.
   8. Stratifying stable derived categories , in preparation.
Oberwolfach reports
   1. Oberwolfach Reports 10 (2009), 587-589. From Mini Workshop on "Support Varieties", February 15-21, 2009.
   2. Oberwolfach Reports 17 (2009), 963-965. From Workshop on "Representations of Finite Groups", March 22-28, 2009.
   3. Oberwolfach Reports 32 (2010), 1942-1944. From Workshop "Cohomology of Finite Groups: Interactions and Applications", July 25-31, 2010.
Slide and beamer presentations
   1. Slide presentation from Skye Conference "Algebraic topology, group theory and representation theory", June 9-15, 2009.
   2. Beamer presentation from Workshop on "Hochschild Cohomology, Structure and Applications", CIRM Luminy, June 7-11, 2010.
Lecture notes
   1. A Mini Course on Category Algebras, expanded notes for a 6 hour course at University of Science and Technology of China, September 19-23, 2011.
   2. Representations and Cohomology of Finite Categories ( Fei's Book , DRAFT).


Research activities (my trace :-) in 2011/12 academic year (earlier activities)

[Summer School/Workshop] Cohomology and Support in Representation Theory and Related Topics, University of Washington, Seattle, July 27 - August 5, 2012.
[Moving] to 汕头大学 (Shantou University) , starting in March, 2012.
[Calçotada] Cal Ganxo, January 8, 2012.
[Barcelona Topology Workshop] Bellaterra, December 16, 2011.
[Workshop] Cohomology and Support, Morningside Center of Mathematics, Chinese Academy of Science, Beijing, September 26-30, 2011.
[Academic visit] Department of Mathematics, University of Science and Technology of China, Hefei, September 19-23, 2011


2010/11 academic year
[RET meeting] Categorical Aspects of Geometry and Topology, Universidad de Salamanca, May 20-21, 2011.
[Academic visit/Representation Theory Seminar] Universität Bielefeld, May 9-13, 2011.
[Academic visit/Topology Seminar] Universidad de Màlaga, April 25-29, 2011.
[Barcelona Topology Workshop] Torroja del Priorat, December 10-12, 2010.
[Societat Catalana de Matemàtiques Meeting] Barcelona, November 5, 2010.
[Algebra and Combinatorics Seminar] September 2010 - present.

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Created : 08/04/2010, Last Modification : 10/01/2012.