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arXiv · 1610.06429

Asymptotic Schur orthogonality in hyperbolic groups with application to monotony

Adrien Boyer·Łukasz Garncarek
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Abstract

We prove a generalization of Schur orthogonality relations for certain classes of representations of Gromov hyperbolic groups. We apply the obtained results to show that representations of non-abelian free groups associated to the Patterson-Sullivan measures corresponding to a wide class of invariant metrics on the group are monotonous in the sense introduced by Kuhn and Steger. This in particular includes representations associated to harmonic measures of a wide class of random walks.

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Adrien Boyer, Łukasz Garncarek. 2016-10-19. Asymptotic Schur orthogonality in hyperbolic groups with application to monotony. https://arxiv.org/abs/1610.06429

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