English

Uncountably many permutation stable groups

Group Theory 2019-10-28 v1 Dynamical Systems

Abstract

In a 1937 paper B.H. Neumann constructed an uncountable family of 22-generated groups. We prove that all of his groups are permutation stable by analyzing the structure of their invariant random subgroups.

Cite

@article{arxiv.1910.11722,
  title  = {Uncountably many permutation stable groups},
  author = {Arie Levit and Alexander Lubotzky},
  journal= {arXiv preprint arXiv:1910.11722},
  year   = {2019}
}
R2 v1 2026-06-23T11:54:57.001Z