# 澳门金沙网址

The first Hochschild cohomology and wildness of finite group schemes

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 $kG$.