English

Degenerations of ideal hyperbolic triangulations

Geometric Topology 2011-06-08 v4

Abstract

Let M be a cusped 3-manifold, and let T be an ideal triangulation of M. The deformation variety D(T), a subset of which parameterises (incomplete) hyperbolic structures obtained on M using T, is defined and compactified by adding certain projective classes of transversely measured singular codimension-one foliations of M. This leads to a combinatorial and geometric variant of well-known constructions by Culler, Morgan and Shalen concerning the character variety of a 3-manifold.

Keywords

Cite

@article{arxiv.math/0508295,
  title  = {Degenerations of ideal hyperbolic triangulations},
  author = {Stephan Tillmann},
  journal= {arXiv preprint arXiv:math/0508295},
  year   = {2011}
}

Comments

31 pages, 11 figures; minor changes; to appear in Mathematische Zeitschrift

R2 v1 2026-07-22T17:23:08.656Z