Mapping class groups of $h$-cobordant manifolds

Fuente: arXiv
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Main Author: Muñoz-Echániz, Samuel
Format: Preprint
Published: 2022
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author Muñoz-Echániz, Samuel
author_facet Muñoz-Echániz, Samuel
contents We prove that the mapping class group is not an $h$-cobordism invariant of high-dimensional manifolds by exhibiting $h$-cobordant manifolds whose mapping class groups have different cardinalities. In order to do so, we introduce a moduli space of "$h$-block" bundles and understand its difference with the moduli space of ordinary block bundles.
format Preprint
id arxiv_https___arxiv_org_abs_2210_06573
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Mapping class groups of $h$-cobordant manifolds
Muñoz-Echániz, Samuel
Algebraic Topology
Geometric Topology
57R80, 55R60, 57S05, 57N37, 57Q10
We prove that the mapping class group is not an $h$-cobordism invariant of high-dimensional manifolds by exhibiting $h$-cobordant manifolds whose mapping class groups have different cardinalities. In order to do so, we introduce a moduli space of "$h$-block" bundles and understand its difference with the moduli space of ordinary block bundles.
title Mapping class groups of $h$-cobordant manifolds
topic Algebraic Topology
Geometric Topology
57R80, 55R60, 57S05, 57N37, 57Q10
url https://arxiv.org/abs/2210.06573