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arXiv · 1002.0932

A Lattice Point Problem on the Regular Tree

Femke Douma
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Abstract

Heinz Huber (1956) considered the following problem on the the hyperbolic plane H. Consider a strictly hyperbolic subgroup of automorphisms on H with compact quotient, and choose a conjugacy class in this group. Count the number of vertices inside an increasing ball, which are images of a fixed point x in H under automorphisms in the chosen conjugacy class, and describe the asymptotic behaviour of this number as the size of the ball goes to infinity. We use a well-known analogy between the hyperbolic plane and the regular tree to solve this problem on the regular tree.

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Femke Douma. 2010-02-04. A Lattice Point Problem on the Regular Tree. https://arxiv.org/abs/1002.0932

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