Ribbon distance and Khovanov homology
Geometric Topology
2020-04-29 v3
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.
Keywords
Cite
@article{arxiv.1903.11095,
title = {Ribbon distance and Khovanov homology},
author = {Sucharit Sarkar},
journal= {arXiv preprint arXiv:1903.11095},
year = {2020}
}
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12 pages