English

Immutability is not uniformly decidable in hyperbolic groups

Group Theory 2017-03-17 v1

Abstract

A finitely generated subgroup H of a torsion-free hyperbolic group G is called immutable if there are only finitely many conjugacy classes of injections of H into G. We show that there is no uniform algorithm to recognize immutability, answering a uniform version of a question asked by the authors.

Keywords

Cite

@article{arxiv.1703.05725,
  title  = {Immutability is not uniformly decidable in hyperbolic groups},
  author = {Daniel Groves and Henry Wilton},
  journal= {arXiv preprint arXiv:1703.05725},
  year   = {2017}
}

Comments

5 pages

R2 v1 2026-06-22T18:47:59.390Z