2 problems

Let $H$ be a bialgebra and let $\mathbf R=\{R^{(c)}\}_{c\in C}\in H\widehat\otimes H$ solve the transitive quantum Yang–Baxter equation … whenever $c'\in\{c,c”\}\subset C$. For an…

Transitivity conjecture. The element $\mathbf R^{(\boldsymbol{\epsilon})}$ solves the QYBE. This is expected to provide a large noncommutative class of QYBE solutions analogous to…