报告题目：Homological behavior of modules over diagrams I: Modules over diagrams of small categories

报 告 人：狄振兴教授（西北师范大学）

报告时间：2021年12月1日  14:30-15:30

报告地点：数学研究中心534多功能研讨室

报告摘要：

In this talk, we introduce the notion of diagrams of small categories, which is a common generalization of some important algebraic structures naturally arising in geometric contexts. One can view a diagram of a small category C as a pseudo 2-functor from C to the (large) 2-category AB of abelian categories. We study modules over diagrams of small categories, give the extension (restriction) functor induced from a morphism of diagrams of a small category, and investigate the equivalence of categories of modules over diagrams of a small category. This talk is based on a joint work with Liping Li, Li Liang and Nina Yu.

报告人简介：

狄振兴，现为西北师范大学教授，博士生导师。主要从事环的同调理论、相对同调理论与代数表示理论的相关研究工作。迄今以第一作者或通讯作者在《Proceedings of the Royal Society of Edinburgh. Section A. Mathematics》《Journal of Algebra》等国际SCI刊物发表论文二十余篇。