Graphs of Quasicircles and Quasiconformal Homeomorphisms

Fuente: arXiv
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Auteurs principaux: Booth, Katherine Williams, Nolte, Alexander, Verberne, Yvon
Format: Preprint
Publié: 2026
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author Booth, Katherine Williams
Nolte, Alexander
Verberne, Yvon
author_facet Booth, Katherine Williams
Nolte, Alexander
Verberne, Yvon
contents We give a combinatorial characterization of the group of quasiconformal homeomorphisms of a closed, oriented surface $S$ of genus at least $2$. In particular, we prove they are exactly the automorphisms of a graph of essential quasicircles on $S$ that respect a canonical coarse ordering induced by quality constants. We also discuss the coarse geometry of this graph.
format Preprint
id arxiv_https___arxiv_org_abs_2601_09892
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Graphs of Quasicircles and Quasiconformal Homeomorphisms
Booth, Katherine Williams
Nolte, Alexander
Verberne, Yvon
Geometric Topology
57K20, 30C62, 20F65, 57M07
We give a combinatorial characterization of the group of quasiconformal homeomorphisms of a closed, oriented surface $S$ of genus at least $2$. In particular, we prove they are exactly the automorphisms of a graph of essential quasicircles on $S$ that respect a canonical coarse ordering induced by quality constants. We also discuss the coarse geometry of this graph.
title Graphs of Quasicircles and Quasiconformal Homeomorphisms
topic Geometric Topology
57K20, 30C62, 20F65, 57M07
url https://arxiv.org/abs/2601.09892