On the derived invariance of derived delooping levels

报告人：魏加群 教授

报告题目：On the derived invariance of derived delooping levels

报告时间：2026年11月7日14:00-14:40

报告地点：云龙校区智华楼201报告厅

报告人简介：

魏加群，浙江师范大学数学学院教授，博士生导师。研究方向为同调代数与代数表示论，曾主持省级杰出青年基金及多项国家级项目,入选省级中青年学术带头人，曾获教育部科技二等奖(排名第三)等，研究论文发表于Adv. Math., Math. Z., Math. Proc. Camb. Phil. Soc., Israel J. Math., J. Algebra，J. Pure Appl. Algebra, Comm. Algebra等著名杂志。

报告摘要：

The delooping level and the derived delooping level provide upper bounds for the finitistic dimension, a central invariant in the homological theory of Artin algebras. The finiteness of the delooping level is not invariant under derived equivalence by a recent counterexample from Chen. In this paper, we study the finiteness of the derived delooping level under derived equivalences and give new derived invariants.