Accessibility, planar graphs, and quasi-isometries

Fuente: arXiv
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Main Author: MacManus, Joseph Paul
Format: Preprint
Published: 2023
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author MacManus, Joseph Paul
author_facet MacManus, Joseph Paul
contents We prove that a connected, locally finite, quasi-transitive graph which is quasi-isometric to a planar graph is necessarily accessible. This leads to a complete classification of the finitely generated groups which are quasi-isometric to planar graphs. In particular, such a group is virtually a free product of free and surface groups, and thus virtually admits a planar Cayley graph.
format Preprint
id arxiv_https___arxiv_org_abs_2310_15242
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Accessibility, planar graphs, and quasi-isometries
MacManus, Joseph Paul
Group Theory
Combinatorics
Metric Geometry
20F65 (Primary) 05C10, 20E08, 51F30 (Secondary)
We prove that a connected, locally finite, quasi-transitive graph which is quasi-isometric to a planar graph is necessarily accessible. This leads to a complete classification of the finitely generated groups which are quasi-isometric to planar graphs. In particular, such a group is virtually a free product of free and surface groups, and thus virtually admits a planar Cayley graph.
title Accessibility, planar graphs, and quasi-isometries
topic Group Theory
Combinatorics
Metric Geometry
20F65 (Primary) 05C10, 20E08, 51F30 (Secondary)
url https://arxiv.org/abs/2310.15242