Uniformization of gasket Julia sets

Fuente: arXiv
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Hauptverfasser: Luo, Yusheng, Ntalampekos, Dimitrios
Format: Preprint
Veröffentlicht: 2024
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author Luo, Yusheng
Ntalampekos, Dimitrios
author_facet Luo, Yusheng
Ntalampekos, Dimitrios
contents The object of the paper is to characterize gasket Julia sets of rational maps that can be uniformized by round gaskets. We restrict to rational maps without critical points on the Julia set. Under these conditions, we prove that a Julia set can be quasiconformally uniformized by a round gasket if and only if it is a fat gasket, i.e., boundaries of Fatou components intersect tangentially. We also prove that a Julia set can be uniformized by a round gasket with a David homeomorphism if and only if every Fatou component is a quasidisk; equivalently, there are no parabolic cycles of multiplicity 2. Our theorem applies to show that gasket Julia sets and limit sets of Kleinian groups can be locally quasiconformally homeomorphic, although globally this is conjectured to be false.
format Preprint
id arxiv_https___arxiv_org_abs_2411_17227
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Uniformization of gasket Julia sets
Luo, Yusheng
Ntalampekos, Dimitrios
Dynamical Systems
Complex Variables
Primary 37F10, 37F31, Secondary 30C62, 37F30
The object of the paper is to characterize gasket Julia sets of rational maps that can be uniformized by round gaskets. We restrict to rational maps without critical points on the Julia set. Under these conditions, we prove that a Julia set can be quasiconformally uniformized by a round gasket if and only if it is a fat gasket, i.e., boundaries of Fatou components intersect tangentially. We also prove that a Julia set can be uniformized by a round gasket with a David homeomorphism if and only if every Fatou component is a quasidisk; equivalently, there are no parabolic cycles of multiplicity 2. Our theorem applies to show that gasket Julia sets and limit sets of Kleinian groups can be locally quasiconformally homeomorphic, although globally this is conjectured to be false.
title Uniformization of gasket Julia sets
topic Dynamical Systems
Complex Variables
Primary 37F10, 37F31, Secondary 30C62, 37F30
url https://arxiv.org/abs/2411.17227