English

Characteristic Subsurfaces, Character Varieties and Dehn Filling

Geometric Topology 2014-11-11 v1

Abstract

We give new bounds for the distance between two exceptional filling slopes for a 1-cusped hyperbolic 3-manifold in several different situations. The distance between a reducible slope and a slope that produces a manifold with finite fundamental group is at most 2. The distance between a reducible slope and one that produces a very small manifold is also at most 2. The distance between a reducible slope and one which produces a manifold with a pi_1 injective torus is at most 4. The methods used involve both characteristic submanifold theory and the theory of the PSL(2,C) character variety.

Keywords

Cite

@article{arxiv.math/0611669,
  title  = {Characteristic Subsurfaces, Character Varieties and Dehn Filling},
  author = {Steve Boyer and Marc Culler and Peter B. Shalen and Xingru Zhang},
  journal= {arXiv preprint arXiv:math/0611669},
  year   = {2014}
}

Comments

60 pages, 4 figures

R2 v1 2026-07-22T17:46:44.303Z