English

Hyperbolic groups of Fibonacci type and T(5) cyclically presented groups

Group Theory 2021-04-07 v2

Abstract

Building on previous results concerning hyperbolicity of groups of Fibonacci type, we give an almost complete classification of the (non-elementary) hyperbolic groups within this class. We are unable to determine the hyperbolicity status of precisely two groups, namely the Gilbert-Howie groups H(9,4), H(9,7). We show that if H(9,4) is torsion-free then it is not hyperbolic. We consider the class of T(5) cyclically presented groups and classify the (non-elementary) hyperbolic groups and show that the Tits alternative holds.

Keywords

Cite

@article{arxiv.2008.08986,
  title  = {Hyperbolic groups of Fibonacci type and T(5) cyclically presented groups},
  author = {Ihechukwu Chinyere and Gerald Williams},
  journal= {arXiv preprint arXiv:2008.08986},
  year   = {2021}
}

Comments

23 pages, 5 figures. Accepted Manuscript, to be published in Journal of Algebra

R2 v1 2026-06-23T17:59:31.547Z