The Brauer indecomposability of Scott modules with wreathed $2$-group vertices
Representation Theory
2022-01-05 v1 Group Theory
Abstract
We give a sufficient condition for the -Scott module with vertex to remain indecomposable under taking the Brauer construction for any subgroup of as -module, where is a field of characteristic , and is a wreathed -subgroup of a finite group . This generalizes results for the cases where is abelian and some others. The motivation of this paper is that the Brauer indecomposability of a -permutation bimodule ( is a prime) is one of the key steps in order to obtain a splendid stable equivalence of Morita type by making use of the gluing method that then can possibly lift to a splendid derived equivalence.
Keywords
Cite
@article{arxiv.2012.08229,
title = {The Brauer indecomposability of Scott modules with wreathed $2$-group vertices},
author = {Shigeo Koshitani and İpek Tuvay},
journal= {arXiv preprint arXiv:2012.08229},
year = {2022}
}