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In the classical equation, one looks for $R\in\Lambda^2\mathfrak g$ such that $$[R,R]=0,$$ where the bracket is Schouten's bracker in $\Lambda^\bullet\mathfrak g$, the exterior algebra on a Lie algebra $\mathfrak g$. In the quantum one (in its non-parametric form...), one looks for endomorphisms $R:V\otimes V\to V\otimes V$ of tensor squares of vector spaces $V$ such that $$R_{12} \ R_{13} \ R_{23} = R_{23} \ R_{13} \ R_{12},$$

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Involutive solutions to the Yang-Baxter equation (and triangular Hopf algebras)

I am not sure about the conjugation property that you are asking, but I know some solutions to the set theoretical YB equation, which are degenerate, nevertheless interesting. The simplest one comes f …
Balázs Pozsgay's user avatar