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Seminar
FIELD Mathematics
DATE May 18 (Fri), 2018
TIME 14:00-15:30
PLACE 8309
SPEAKER Gye-Seon Lee
HOST Park, Jinsung
INSTITUTE University of Heidelberg
TITLE Exotic quasi-Fuchsian groups
ABSTRACT

Let G be the isometry group of (d+1)-dimensional hyperbolic (or
anti-de Sitter) space. A subgroup H of G is quasi-Fuchsian if H is a
convex cocompact discrete subgroup of G and the limit set of H is
homeomorphic to the (d-1)-dimensional sphere. In this talk, I will
explain how to construct examples of quasi-Fuchsian groups of G which
are not quasi-isometric to the hyperbolic d-space using the Tits-Vinberg
representation of Coxeter groups. Joint work with Ludovic Marquis.

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