Non-split, alternating links bound unique Seifert surfaces in the 4-ball

Fuente: arXiv
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Main Authors: Kim, Seungwon, Miller, Maggie, Yoo, Jaehoon
Format: Preprint
Published: 2024
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author Kim, Seungwon
Miller, Maggie
Yoo, Jaehoon
author_facet Kim, Seungwon
Miller, Maggie
Yoo, Jaehoon
contents We show that any two same-genus, oriented, boundary parallel surfaces bounded by a non-split, alternating link into the 4-ball are smoothly isotopic fixing boundary. In other words, any same-genus Seifert surfaces for a non-split, alternating link become smoothly isotopic fixing boundary once their interiors are pushed into the 4-ball. We conclude that a smooth surface in $S^4$ obtained by gluing two Seifert surfaces for a non-split alternating link is always smoothly unknotted.
format Preprint
id arxiv_https___arxiv_org_abs_2406_11718
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Non-split, alternating links bound unique Seifert surfaces in the 4-ball
Kim, Seungwon
Miller, Maggie
Yoo, Jaehoon
Geometric Topology
57K10, 57K45
We show that any two same-genus, oriented, boundary parallel surfaces bounded by a non-split, alternating link into the 4-ball are smoothly isotopic fixing boundary. In other words, any same-genus Seifert surfaces for a non-split, alternating link become smoothly isotopic fixing boundary once their interiors are pushed into the 4-ball. We conclude that a smooth surface in $S^4$ obtained by gluing two Seifert surfaces for a non-split alternating link is always smoothly unknotted.
title Non-split, alternating links bound unique Seifert surfaces in the 4-ball
topic Geometric Topology
57K10, 57K45
url https://arxiv.org/abs/2406.11718