Approximations of the Riley slice

Fuente: arXiv
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Main Authors: Elzenaar, Alex, Martin, Gaven, Schillewaert, Jeroen
Format: Preprint
Published: 2021
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author Elzenaar, Alex
Martin, Gaven
Schillewaert, Jeroen
author_facet Elzenaar, Alex
Martin, Gaven
Schillewaert, Jeroen
contents Adapting the ideas of L. Keen and C. Series used in their study of the Riley slice of Schottky groups generated by two parabolics, we explicitly identify `half-space' neighbourhoods of pleating rays which lie completely in the Riley slice. This gives a provable method to determine if a point is in the Riley slice or not. We also discuss the family of Farey polynomials which determine the rational pleating rays and their root set which determines the Riley slice; this leads to a dynamical systems interpretation of the slice. Adapting these methods to the case of Schottky groups generated by two elliptic elements in subsequent work facilitates the programme to identify all the finitely many arithmetic generalised triangle groups and their kin.
format Preprint
id arxiv_https___arxiv_org_abs_2111_03230
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Approximations of the Riley slice
Elzenaar, Alex
Martin, Gaven
Schillewaert, Jeroen
Geometric Topology
Complex Variables
Group Theory
32G15, 30F40, 57N05
Adapting the ideas of L. Keen and C. Series used in their study of the Riley slice of Schottky groups generated by two parabolics, we explicitly identify `half-space' neighbourhoods of pleating rays which lie completely in the Riley slice. This gives a provable method to determine if a point is in the Riley slice or not. We also discuss the family of Farey polynomials which determine the rational pleating rays and their root set which determines the Riley slice; this leads to a dynamical systems interpretation of the slice. Adapting these methods to the case of Schottky groups generated by two elliptic elements in subsequent work facilitates the programme to identify all the finitely many arithmetic generalised triangle groups and their kin.
title Approximations of the Riley slice
topic Geometric Topology
Complex Variables
Group Theory
32G15, 30F40, 57N05
url https://arxiv.org/abs/2111.03230