English

Infinite simple characteristic quotients

Group Theory 2024-11-08 v3

Abstract

We construct continuum many infinite, simple, characteristic quotients of non-abelian free groups, answering a 1978 question of James Wiegold. The method is very flexible, allowing to impose certain properties on the quotients, to generalize the construction to large classes of groups with hyperbolic features, and to produce quasi-isometrically diverse examples.

Keywords

Cite

@article{arxiv.2312.11684,
  title  = {Infinite simple characteristic quotients},
  author = {Rémi Coulon and Francesco Fournier-Facio},
  journal= {arXiv preprint arXiv:2312.11684},
  year   = {2024}
}

Comments

17 pages. v2: added results on quasi-isometric diversity. v3: all groups constructed are now 2-generated

R2 v1 2026-06-28T13:55:20.935Z