English

Thin subgroups isomorphic to Gromov--Piatetski-Shapiro lattices

Geometric Topology 2021-01-20 v3 Group Theory Number Theory

Abstract

In this paper we produce many examples of thin subgroups of special linear groups that are isomorphic to the fundamental groups of non-arithmetic hyperbolic manifolds. Specifically, we show that the non-arithmetic lattices in SO(n,1)\mathrm{SO}(n,1) constructed by Gromov and Piatetski-Shapiro can be embedded into SLn+1(R)\mathrm{SL}_{n+1}(\mathbb{R}) so that their images are thin subgroups

Keywords

Cite

@article{arxiv.1911.06933,
  title  = {Thin subgroups isomorphic to Gromov--Piatetski-Shapiro lattices},
  author = {Samuel A. Ballas},
  journal= {arXiv preprint arXiv:1911.06933},
  year   = {2021}
}

Comments

v3: 7 pages, 1 figure, final version to appear in Pacific J Math