Normalized Jones R-matrix Yang–Baxter homology conjecture

Let VV be the rank 22 free kk-module with basis e1,e2e_1,e_2, and let RR be the normalized Jones R-matrix

R=(100001y2100y2000001).R=\left(\begin{array}{cccc}1&0&0&0\\0&1-y^2&1&0\\0&y^2&0&0\\0&0&0&1\end{array}\right).

Write X=(V,R)X=(V,R), and let Hn(X)H_n(X) denote its Yang–Baxter homology. Define sn=i=1n+1fis_n=\sum_{i=1}^{n+1}f_i, where f1=f2=1f_1=f_2=1 and (fi)(f_i) is the Fibonacci sequence, and define ana_n by a1=0a_1=0 and

2n=2+an1+sn3+an+sn2.2^n=2+a_{n-1}+s_{n-3}+a_n+s_{n-2}.

Yang–Baxter homology conjecture. The homology groups satisfy

Hn(X)=k2(k/(1y2))an(k/(1y4))sn2.H_n(X)=k^2\oplus\left(k/(1-y^2)\right)^{a_n}\oplus\left(k/(1-y^4)\right)^{s_{n-2}}.

This predicts the Yang–Baxter homology of the normalized R-matrix associated with the Jones polynomial in terms of Fibonacci partial sums and the recursively specified integers ana_n. The parser reports that the related normalization claim is proved in the cited work, but the supplied text does not establish that this homology formula itself has been resolved.

Sources & referencesView supporting material

Primary source

Mohamed Elhamdadi, Masahico Saito and Emanuele Zappala, “Skein theoretic approach to Yang-Baxter homology”, arXiv:2004.00691 (2020).

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