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2020 Ribbon distance and Khovanov homology
Sucharit Sarkar
Algebr. Geom. Topol. 20(2): 1041-1058 (2020). DOI: 10.2140/agt.2020.20.1041

Abstract

We study a notion of distance between knots, defined in terms of the number of saddles in ribbon concordances connecting the knots. We construct a lower bound on this distance using the X–action on Lee’s perturbation of Khovanov homology.

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Sucharit Sarkar. "Ribbon distance and Khovanov homology." Algebr. Geom. Topol. 20 (2) 1041 - 1058, 2020. https://doi.org/10.2140/agt.2020.20.1041

Information

Received: 4 June 2019; Revised: 25 July 2019; Accepted: 5 August 2019; Published: 2020
First available in Project Euclid: 30 April 2020

zbMATH: 07195384
MathSciNet: MR4092319
Digital Object Identifier: 10.2140/agt.2020.20.1041

Subjects:
Primary: 57M25

Rights: Copyright © 2020 Mathematical Sciences Publishers

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