English

Computing centralizers in [f.g. free]-by-cyclic groups

Group Theory 2023-10-16 v1

Abstract

We prove that centralizers of elements in [f.g. free]-by-cyclic groups are computable. As a corollary we get that, given two conjugate elements in a [f.g. free]-by-cyclic group, the set of conjugators can be computed and that the conjugacy problem with context-free constraints is decidable. In the end, we pose several problems arising naturally from this work.

Keywords

Cite

@article{arxiv.2310.08723,
  title  = {Computing centralizers in [f.g. free]-by-cyclic groups},
  author = {André Carvalho},
  journal= {arXiv preprint arXiv:2310.08723},
  year   = {2023}
}
R2 v1 2026-06-28T12:49:18.170Z