English

A locally hyperbolic 3-manifold that is not hyperbolic

Geometric Topology 2017-12-01 v1

Abstract

We construct a locally hyperbolic 3-manifold MM_\infty such that π1(M)\pi_ 1(M_\infty) has no divisible subgroup. We then show that MM_\infty is not homeomorphic to any complete hyperbolic manifold. This answers a question of Agol [DHM06,Mar07].

Keywords

Cite

@article{arxiv.1711.11568,
  title  = {A locally hyperbolic 3-manifold that is not hyperbolic},
  author = {Tommaso Cremaschi},
  journal= {arXiv preprint arXiv:1711.11568},
  year   = {2017}
}

Comments

11 pages, 5 figures

R2 v1 2026-06-22T23:02:48.939Z