Ruth Kellerhals Full Professor Chair of Geometry / Algebra Departement of Mathematics University of Fribourg - Switzerland ORCID: 0000-0001-5704-8521

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Research Topics Hyperbolic Geometry, Geometry of Discrete Groups, Geometric Group Theory, Coxeter Groups, Growth, Perron Numbers, Discrete and Convex Geometry, Volumes and Polylogarithms. Contact Departement of Mathematics University of Fribourg Chemin du Musée 23 CH-1700 Fribourg Pérolles Switzerland Phone : 0041-(0)26-300-9183 email : ruth.kellerhals at unifr.ch