English

The domino problem for hyperbolic groups

Group Theory 2023-05-12 v1 Dynamical Systems Logic

Abstract

We prove, for every non-virtually free hyperbolic group GG, that there is no algorithm that, given a finite collection of dominoes, determines whether the Cayley graph of GG may be edge-covered by these dominoes so that colours match at vertices. This answers a conjecture by Aubrun, Barbieri and Moutot and goes towards settling a long-standing conjecture of Ballier and Stein.

Keywords

Cite

@article{arxiv.2305.06952,
  title  = {The domino problem for hyperbolic groups},
  author = {Laurent Bartholdi},
  journal= {arXiv preprint arXiv:2305.06952},
  year   = {2023}
}
R2 v1 2026-06-28T10:32:13.945Z