The first Hochschild cohomology and wildness of finite group schemes-武汉大学数学与统计学院

报告题目:

The first Hochschild cohomology and wildness of finite group schemes

报告人:

常浩副教授（华中师范大学）

报告时间:

报告地点:

理学院东北楼四楼报告厅（404）

报告摘要:

Let $B_0(G)$ be the principal block algebra of the group algebra $kG$ of an infinitesimal group scheme $G$. We calculate the restricted Lie algebra structure of the first Hochschild cohomology of $L:=H^1(B_0(G),B_0(G))$. As a consequence, we obtain a criterion for wildness of $kG$.