Exotic Dehn twists and homotopy coherent group actions

Fuente: arXiv
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Main Authors: Kang, Sungkyung, Park, JungHwan, Taniguchi, Masaki
Format: Preprint
Published: 2024
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_version_ 1866909326914879488
author Kang, Sungkyung
Park, JungHwan
Taniguchi, Masaki
author_facet Kang, Sungkyung
Park, JungHwan
Taniguchi, Masaki
contents We consider the question of extending a smooth homotopy coherent finite cyclic group action on the boundary of a smooth 4-manifold to its interior. As a result, we prove that Dehn twists along any Seifert homology sphere, except the 3-sphere, on their simply connected positive-definite fillings are infinite order exotic.
format Preprint
id arxiv_https___arxiv_org_abs_2409_11806
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Exotic Dehn twists and homotopy coherent group actions
Kang, Sungkyung
Park, JungHwan
Taniguchi, Masaki
Geometric Topology
57K41, 57R85, 57R50
We consider the question of extending a smooth homotopy coherent finite cyclic group action on the boundary of a smooth 4-manifold to its interior. As a result, we prove that Dehn twists along any Seifert homology sphere, except the 3-sphere, on their simply connected positive-definite fillings are infinite order exotic.
title Exotic Dehn twists and homotopy coherent group actions
topic Geometric Topology
57K41, 57R85, 57R50
url https://arxiv.org/abs/2409.11806