English

Quotients of permutation groups by nonabelian minimal normal subgroups

Group Theory 2025-11-04 v2

Abstract

We prove that a quotient G/N of a subgroup G of Sym(n) by a nonabelian minimal normal subgroup N of G embeds into Sym(m) for some m<nm<n. This result was proved previously by Robert Chamberlain, and we also prove that,if G is transitive, then we can take m \le 2n/5.

Keywords

Cite

@article{arxiv.2405.19940,
  title  = {Quotients of permutation groups by nonabelian minimal normal subgroups},
  author = {Derek Holt},
  journal= {arXiv preprint arXiv:2405.19940},
  year   = {2025}
}