Back to Commutative Algebra Seminar: Fall 2019
Commutative Algebra Seminar
Date: Friday, Sep 13, 2019
Time: 2:30PM - 3:20PM
Location: LCB 225
Josh Pollitz
University of Utah
Title |
Cohomological support of a local ring |
Abstract |
During this talk, we will discuss a theory of cohomological support defined for pairs of DG modules over a Koszul complex. These specialize to the support varieties of Avramov and Buchweitz defined over a complete intersection ring. Moreover, the support sets introduced in this talk can be used to define a cohomological support for pairs of complexes over an arbitrary local ring. I will try to remark on what kinds of ring theoretic information are encoded in certain supports. |
Commutative Algebra