Non-cobordant hyperbolic manifolds

Fuente: arXiv
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Main Author: Chen, Jacopo G.
Format: Preprint
Published: 2025
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author Chen, Jacopo G.
author_facet Chen, Jacopo G.
contents In all dimensions $n \ge 4$ not of the form $4m+3$, we show that there exists a closed hyperbolic $n$-manifold which is not the boundary of a compact $(n+1)$-manifold. The proof relies on the relationship between the cobordism class and the fixed point set of an involution on the manifold, together with a geodesic embedding of Kolpakov, Reid and Slavich. We also outline a possible approach to cover the dimensions $4m+3 \ne 2^k-1$.
format Preprint
id arxiv_https___arxiv_org_abs_2501_11610
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Non-cobordant hyperbolic manifolds
Chen, Jacopo G.
Geometric Topology
In all dimensions $n \ge 4$ not of the form $4m+3$, we show that there exists a closed hyperbolic $n$-manifold which is not the boundary of a compact $(n+1)$-manifold. The proof relies on the relationship between the cobordism class and the fixed point set of an involution on the manifold, together with a geodesic embedding of Kolpakov, Reid and Slavich. We also outline a possible approach to cover the dimensions $4m+3 \ne 2^k-1$.
title Non-cobordant hyperbolic manifolds
topic Geometric Topology
url https://arxiv.org/abs/2501.11610