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Bibliographic Details
Main Authors: Abrams, Adam, Katok, Svetlana, Ugarcovici, Ilie
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2507.16958
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Table of Contents:
  • We study a family of Bowen-Series-like maps associated to any finitely generated Fuchsian group of the first kind with at least one cusp. These maps act on the boundary of the hyperbolic plane in a piecewise manner by generators of the group. We show that the two-dimensional natural extension (reduction map) of the boundary map has a domain of bijectivity and global attractor with a finite rectangular structure, confirming a conjecture of Don Zagier. Our work is based on the construction of a special fundamental polygon, related to the free product structure of the group, whose marking is preserved by "Teichmüller deformation."