English

Skein theoretic approach to Yang-Baxter homology

Geometric Topology 2020-04-03 v1

Abstract

We introduce skein theoretic techniques to compute the Yang-Baxter (YB) homology and cohomology groups of the R-matrix corresponding to the Jones polynomial. More specifically, we show that the YB operator RR for Jones, normalized for homology, admits a skein decomposition R=I+βαR = I + \beta\alpha, where α:V2k\alpha: V^{\otimes 2} \rightarrow k is a "cup" pairing map and β:kV2\beta: k \rightarrow V^{\otimes 2} is a "cap" copairing map, and differentials in the chain complex associated to RR can be decomposed into horizontal tensor concatenations of cups and caps. We apply our skein theoretic approach to determine the second and third YB homology groups, confirming a conjecture of Przytycki and Wang. Further, we compute the cohomology groups of RR, and provide computations in higher dimensions that yield some annihilations of submodules.

Keywords

Cite

@article{arxiv.2004.00691,
  title  = {Skein theoretic approach to Yang-Baxter homology},
  author = {Mohamed Elhamdadi and Masahico Saito and Emanuele Zappala},
  journal= {arXiv preprint arXiv:2004.00691},
  year   = {2020}
}

Comments

27 pages, 22 figures