Kauffman monoids Kn and Jones monoids Jn, n=2,3,…, are two families of monoids relevant in knot theory. We prove a somewhat counterintuitive result that the Kauffman monoids K3 and K4 satisfy exactly the same identities. This leads to a polynomial time algorithm to check whether a given identity holds in K4. As a byproduct, we also find a polynomial time algorithm for checking identities in the Jones monoid J4.
CITATION STYLE
Kitov, N. V., & Volkov, M. V. (2020). Identities of the kauffman monoid K4 and of the Jones Monoid J4. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 12180 LNCS, pp. 156–178). Springer. https://doi.org/10.1007/978-3-030-48006-6_12
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