Uniformization of Gromov hyperbolic domains by circle domains

Fuente: arXiv
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Main Authors: Karafyllia, Christina, Ntalampekos, Dimitrios
Format: Preprint
Published: 2024
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author Karafyllia, Christina
Ntalampekos, Dimitrios
author_facet Karafyllia, Christina
Ntalampekos, Dimitrios
contents We prove that a domain in the Riemann sphere is Gromov hyperbolic if and only if it is conformally equivalent to a uniform circle domain. This resolves a conjecture of Bonk--Heinonen--Koskela and also verifies Koebe's conjecture (Kreisnormierungsproblem) for the class of Gromov hyperbolic domains. Moreover, the uniformizing conformal map from a Gromov hyperbolic domain onto a circle domain is unique up to Möbius transformations. We also undertake a careful study of the geometry of inner uniform domains in the plane and prove the above uniformization and rigidity results for such domains.
format Preprint
id arxiv_https___arxiv_org_abs_2405_13782
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Uniformization of Gromov hyperbolic domains by circle domains
Karafyllia, Christina
Ntalampekos, Dimitrios
Complex Variables
Metric Geometry
Primary 30C62, 30C65, Secondary 30C35
We prove that a domain in the Riemann sphere is Gromov hyperbolic if and only if it is conformally equivalent to a uniform circle domain. This resolves a conjecture of Bonk--Heinonen--Koskela and also verifies Koebe's conjecture (Kreisnormierungsproblem) for the class of Gromov hyperbolic domains. Moreover, the uniformizing conformal map from a Gromov hyperbolic domain onto a circle domain is unique up to Möbius transformations. We also undertake a careful study of the geometry of inner uniform domains in the plane and prove the above uniformization and rigidity results for such domains.
title Uniformization of Gromov hyperbolic domains by circle domains
topic Complex Variables
Metric Geometry
Primary 30C62, 30C65, Secondary 30C35
url https://arxiv.org/abs/2405.13782