Fixed point conditions for non-coprime actions
Group Theory
2025-04-30 v1
Abstract
In the setting of finite groups, suppose acts on via automorphisms so that the induced semidirect product acts on some non-empty set , with acting transitively. Glauberman proved that if the orders of and are coprime, then fixes a point in . We consider the non-coprime case and show that if is abelian and a Sylow -subgroup of fixes a point in for each prime , then fixes a point in . We also show that if is nilpotent, is supersoluble, and a Sylow -subgroup of fixes a point in for each prime , then fixes a point in .
Keywords
Cite
@article{arxiv.2308.12286,
title = {Fixed point conditions for non-coprime actions},
author = {Michael C. Burkhart},
journal= {arXiv preprint arXiv:2308.12286},
year = {2025}
}