Khovanov homology detects split links

Fuente: arXiv
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Hauptverfasser: Lipshitz, Robert, Sarkar, Sucharit
Format: Preprint
Veröffentlicht: 2019
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author Lipshitz, Robert
Sarkar, Sucharit
author_facet Lipshitz, Robert
Sarkar, Sucharit
contents Extending ideas of Hedden-Ni, we show that the module structure on Khovanov homology detects split links. We also prove an analogue for untwisted Heegaard Floer homology of the branched double cover. Technical results proved along the way include two interpretations of the module structure on untwisted Heegaard Floer homology in terms of twisted Heegaard Floer homology and the fact that the module structure on the reduced Khovanov complex of a link is well-defined up to quasi-isomorphism.
format Preprint
id arxiv_https___arxiv_org_abs_1910_04246
institution arXiv
publishDate 2019
record_format arxiv
spellingShingle Khovanov homology detects split links
Lipshitz, Robert
Sarkar, Sucharit
Geometric Topology
Extending ideas of Hedden-Ni, we show that the module structure on Khovanov homology detects split links. We also prove an analogue for untwisted Heegaard Floer homology of the branched double cover. Technical results proved along the way include two interpretations of the module structure on untwisted Heegaard Floer homology in terms of twisted Heegaard Floer homology and the fact that the module structure on the reduced Khovanov complex of a link is well-defined up to quasi-isomorphism.
title Khovanov homology detects split links
topic Geometric Topology
url https://arxiv.org/abs/1910.04246