Date/Time Date(s) - 26/09/20243:30 pm - 4:30 pm
Location: HH 312
Speaker: Ergun Yalcin (Bilkent University)
Title: Cohomology and extensions of small categories
Abstract: I will introduce the cohomology groups for small categories and regular extensions of categories, and discuss the connections between them as a generalization of group extension theory. I will show how different versions of LHS-spectral sequence can be constructed for extensions of categories, and discuss some of the consequences of these spectral sequences.