Cohomology and projectivity of modules for finite group schemes
Representation Theory
2019-09-25 v1
Abstract
Let G be a finite group scheme over an algebraically closed field of positive characteristic. Assume further that the connected component of G is unipotent. It is shown that the projectivity of a rational G-module can be detected on a family of closed subgroups. It is further shown that nilpotent cohomology or extension classes can be detected on this family of subgroups.
Keywords
Cite
@article{arxiv.math/0008168,
title = {Cohomology and projectivity of modules for finite group schemes},
author = {Christopher P. Bendel},
journal= {arXiv preprint arXiv:math/0008168},
year = {2019}
}
Comments
21 pages