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Conformal dimension and Gromov hyperbolic groups with 2-sphere boundary

Mario Bonk, Bruce Kleiner

math.GRarXiv:math/0208135

Abstract

Suppose G is a Gromov hyperbolic group, and the boundary at infinity of G is quasisymmetrically homeomorphic to an Ahlfors Q-regular metric 2-sphere Z with Ahlfors regular conformal dimension Q. Then G acts discretely, cocompactly, and isometrically on hyperbolic 3-space.

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