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On some exotic Schottky groups
Marc Peigné 1
(01/10/2010)

We contruct a Cartan-Hadamard manifold with pinched negative curvature whose group of isometries possesses divergent discrete free subgroups with parabolic elements who do not satisfy the so-called ``parabolic gap condition''. This construction relies on the comparaison between the Poincaré series of these free groups and the potential of some transfer operator which appears naturally in this context.
1 :  Laboratoire de Mathématiques et Physique Théorique (LMPT)
CNRS : UMR6083 – Université François Rabelais - Tours
Mathématiques/Systèmes dynamiques
Kleinian group – Poincaré series – Transfer operator
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