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arXiv:1805.07704 [math.GT]AbstractReferencesReviewsResources

A note on the writhe polynomial and the virtual crossing number

Zhiyun Cheng

Published 2018-05-20Version 1

In this note we give a new lower bound on the virtual crossing number via the writhe polynomial, which refines a result of B. Mellor. The proof is based on a new interpretation of the writhe polynomial. The characterization of the writhe polynomial is also discussed.

Comments: 8 pages, 6 figures
Categories: math.GT
Subjects: 57M25, 57M27
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