English

Fake Galois Actions

Representation Theory 2019-02-25 v1

Abstract

We prove that for all non-abelian finite simple groups SS, there exists a fake mth Galois action on IBr(X)(X) with respect to XXX \lhd X \rtimes Aut(X)(X), where XX is the universal covering group of SS and mm is any non-negative integer coprime to the order of XX. This is one of the two inductive conditions needed to prove an \ell-modular analogue of the Glauberman-Isaacs correspondence.

Keywords

Cite

@article{arxiv.1902.08494,
  title  = {Fake Galois Actions},
  author = {Niamh Farrell and Lucas Ruhstorfer},
  journal= {arXiv preprint arXiv:1902.08494},
  year   = {2019}
}
R2 v1 2026-06-23T07:48:13.725Z