Structure monoids of set-theoretic solutions of the Yang-Baxter equation

Ferran Cedo, Eric Jespers, Charlotte Verwimp

Given a set-theoretic solution $(X,r)$ of the Yang--Baxter equation, we denote by $M=M(X,r)$ the structure monoid and by $A=A(X,r)$, respectively $A^{\prime }=A^{\prime }(X,r)$, the left, respective…