论文标题
投影性不可分解的排列模块
Projective indecomposable permutation modules
论文作者
论文摘要
我们调查了有限的非亚伯式简单组$ g $,为此,琐碎模块的投影覆盖物与子组上的置换模块重合并对所有情况进行分类,除非$ g $是定义特征的谎言类型。
We investigate finite non-Abelian simple groups $G$ for which the projective cover of the trivial module coincides with the permutation module on a subgroup and classify all cases unless $G$ is of Lie type in defining characteristic.