Benoist-Hulin groups

Fuente: arXiv
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Main Authors: Miyachi, Hideki, Zhao, Yannian
Format: Preprint
Published: 2025
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author Miyachi, Hideki
Zhao, Yannian
author_facet Miyachi, Hideki
Zhao, Yannian
contents A Benoist-Hulin group is, by definition, a subgroup $Γ$ of ${\rm PSL}_2(\mathbb{C})$ such that any $Γ$-invariant closed set consisting of Jordan curves in the space of closed subsets of the Riemann sphere that are not singletons is composed of $K$-quasicircles for some $K \ge 1$. Y.Benoist and D.Hulin showed that the full group ${\rm PSL}_2(\mathbb{C})$ is a Benoist-Hulin group. In this paper, we develop the theory of Benoist-Hulin groups and show that both uniform lattices and parabolic subgroups are Benoist-Hulin groups.
format Preprint
id arxiv_https___arxiv_org_abs_2507_19927
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Benoist-Hulin groups
Miyachi, Hideki
Zhao, Yannian
Group Theory
Complex Variables
Dynamical Systems
Geometric Topology
Primary 30C62, Secondary 57M60
A Benoist-Hulin group is, by definition, a subgroup $Γ$ of ${\rm PSL}_2(\mathbb{C})$ such that any $Γ$-invariant closed set consisting of Jordan curves in the space of closed subsets of the Riemann sphere that are not singletons is composed of $K$-quasicircles for some $K \ge 1$. Y.Benoist and D.Hulin showed that the full group ${\rm PSL}_2(\mathbb{C})$ is a Benoist-Hulin group. In this paper, we develop the theory of Benoist-Hulin groups and show that both uniform lattices and parabolic subgroups are Benoist-Hulin groups.
title Benoist-Hulin groups
topic Group Theory
Complex Variables
Dynamical Systems
Geometric Topology
Primary 30C62, Secondary 57M60
url https://arxiv.org/abs/2507.19927