Hyperbolic Tessellation and Colorings of Trees

Author:

Kim Dong Han1ORCID,Lim Seonhee2ORCID

Affiliation:

1. Department of Mathematics Education, Dongguk University-Seoul, Seoul 100-715, Republic of Korea

2. Department of Mathematical Sciences, Seoul National University, Seoul 151-747, Republic of Korea

Abstract

We study colorings of a tree induced from isometries of the hyperbolic plane given an ideal tessellation. We show that, for a given tessellation of the hyperbolic plane by ideal polygons, a coloring can be associated with any element of Isom(2), and the element is a commensurator ofΓif and only if its associated coloring is periodic, generalizing a result of Hedlund and Morse.

Funder

National Research Foundation

Publisher

Hindawi Limited

Subject

Applied Mathematics,Analysis

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