English

Commutators and commutator subgroups in profinite groups

Group Theory 2016-11-08 v3

Abstract

Let GG be a profinite group. We prove that the commutator subgroup GG' is finite-by-procyclic if and only if the set of all commutators of GG is contained in a union of countably many procyclic subgroups.

Keywords

Cite

@article{arxiv.1408.5034,
  title  = {Commutators and commutator subgroups in profinite groups},
  author = {Cristina Acciarri and Pavel Shumyatsky},
  journal= {arXiv preprint arXiv:1408.5034},
  year   = {2016}
}

Comments

19 pages, final version

R2 v1 2026-06-22T05:35:40.304Z