ALGEBRA SEMINAR

Current seminar: Monday, February 25th, 15:30 - 16:30, the seminar room of KA (319/334)

Jan Saroch (MFF UK):
ON A RECURSIVE NOTION OF RELATIVE STATIONARITY FOR MODULES
Forthcoming:

March 4th - Leonid Positselski (IM CAS): COUNTABLY GENERATED ENDO-SIGMA-COPERFECT MODULES
Abstract: A question of Angeleri Hugel and Saorin about perfect decompositions of endo-Sigma-coperfect modules can be formulated as follows: if a module M is Sigma-coperfect over its endomorphism ring, does it follow that every local direct summand in M is a direct summand? In this talk I will prove that if M is a countably generated endo-Sigma-coperfect module, then every countably indexed local direct summand in M is a direct summand. The argument using Bass flat contramodules over topological rings with a countable base of neighborhoods of zero belongs to Jan Stovicek and the speaker.

March 11th - Liran Shaul (MFF UK): TBA


April 15th - Amnon Yekutieli (Ben Gurion Univ.): TBA


Previous program: 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 1997-2002.


The Algebra Seminar was founded by Vladimir Korinek in the early 1950's and continued by Karel Drbohlav until 1981. The seminar resumed its activities in 1990 under the guidance of Jaroslav Jezek and Tomas Kepka. Since 1994, the seminar is headed by Jan Trlifaj.

Presently, the seminar is supported by ECI and GACR. It serves primarily as a platform for presentation of recent research of the visitors to the ECI and to the Department of Algebra, as well as members of the Department and their students.