Lamplighter-like geometry of groups

Fuente: arXiv
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Auteurs principaux: Genevois, Anthony, Tessera, Romain
Format: Preprint
Publié: 2024
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author Genevois, Anthony
Tessera, Romain
author_facet Genevois, Anthony
Tessera, Romain
contents In this article, we introduce halo products as a natural generalisation of wreath products. They also encompass lampshuffler groups $\mathrm{FSym}(H) \rtimes H$ and lampcloner groups $\mathrm{FGL}(H) \rtimes H$, as well as many possible variations based for instance on braid groups, Thompson's groups, mapping class groups, automorphisms of free groups. We build a geometric framework that allows us to study the large-scale geometry of halo groups, providing refined invariants distinguishing various halo groups up to quasi-isometry.
format Preprint
id arxiv_https___arxiv_org_abs_2401_13520
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Lamplighter-like geometry of groups
Genevois, Anthony
Tessera, Romain
Group Theory
Geometric Topology
Metric Geometry
20F65, 20F69
In this article, we introduce halo products as a natural generalisation of wreath products. They also encompass lampshuffler groups $\mathrm{FSym}(H) \rtimes H$ and lampcloner groups $\mathrm{FGL}(H) \rtimes H$, as well as many possible variations based for instance on braid groups, Thompson's groups, mapping class groups, automorphisms of free groups. We build a geometric framework that allows us to study the large-scale geometry of halo groups, providing refined invariants distinguishing various halo groups up to quasi-isometry.
title Lamplighter-like geometry of groups
topic Group Theory
Geometric Topology
Metric Geometry
20F65, 20F69
url https://arxiv.org/abs/2401.13520