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arXiv · 1102.4381

Rigidity of Schottky sets

Mario Bonk·Bruce Kleiner·Sergei Merenkov
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Abstract

We call a complement of a union of at least three disjoint (round) open balls in the unit sphere S^n a Schottky set. We prove that every quasisymmetric homeomorphism of a Schottky set of spherical measure zero to another Schottky set is the restriction of a Mobius transformation on S^n. In the other direction we show that every Schottky set in S^2 of positive measure admits non-trivial quasisymmetric maps to other Schottky sets. These results are applied to establish rigidity statements for convex subsets of hyperbolic space that have totally geodesic boundaries.

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Mario Bonk, Bruce Kleiner, Sergei Merenkov. 2011-02-22. Rigidity of Schottky sets. https://arxiv.org/abs/1102.4381

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