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Discrete subgroups of small critical exponent

Geometry/Topology

Speaker: Beibei Liu, Max Planck Institute
Location: Zoom
Start time: Tue, Oct 20 2020, 1:10PM


It is conjectured by Kapovich that finitely generated Kleinian groups with critical exponent less than 1 are convex-cocompact. In this talk, we partly answer this in the affirmative by showing that any finitely generated Kleinian groups with sufficiently small critical exponent are convex-cocompact. We also give some geometric properties of hyperbolic manifolds with critical exponent less than 1.