Bounded cohomology of measure-preserving homeomorphism groups of non-orientable surfaces

Fuente: arXiv
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Autori principali: Brandenbursky, Michael, Menashe, Lior
Natura: Preprint
Pubblicazione: 2025
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author Brandenbursky, Michael
Menashe, Lior
author_facet Brandenbursky, Michael
Menashe, Lior
contents Let $N_g$ be a closed non-orientable surface of genus $g\geq 3$. Let $\operatorname{Homeo}_0(N_g,μ)$ be the identity component of the group of measure-preserving homeomorphisms of $N_g$. In this work we prove that the third bounded cohomology of $\operatorname{Homeo}_0(N_g,μ)$ is infinite dimensional.
format Preprint
id arxiv_https___arxiv_org_abs_2506_02728
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bounded cohomology of measure-preserving homeomorphism groups of non-orientable surfaces
Brandenbursky, Michael
Menashe, Lior
Geometric Topology
Group Theory
Let $N_g$ be a closed non-orientable surface of genus $g\geq 3$. Let $\operatorname{Homeo}_0(N_g,μ)$ be the identity component of the group of measure-preserving homeomorphisms of $N_g$. In this work we prove that the third bounded cohomology of $\operatorname{Homeo}_0(N_g,μ)$ is infinite dimensional.
title Bounded cohomology of measure-preserving homeomorphism groups of non-orientable surfaces
topic Geometric Topology
Group Theory
url https://arxiv.org/abs/2506.02728