Some remarks on the chord index
Geometric Topology
2020-12-29 v1
Abstract
In this paper we discuss how to define a chord index via smoothing a real crossing point of a virtual knot diagram. Several polynomial invariants of virtual knots and links can be recovered from this general construction. We also explain how to extend this construction from virtual knots to flat virtual knots.
Keywords
Cite
@article{arxiv.1811.09061,
title = {Some remarks on the chord index},
author = {Zhiyun Cheng and Hongzhu Gao and Mengjian Xu},
journal= {arXiv preprint arXiv:1811.09061},
year = {2020}
}
Comments
20 pages, 15 figures