Abstract
In the continuity of our previous paper (Crampe et al. in Commun Math Phys 349:271, 2017, arXiv:1509.05516 ), we define three new algebras, $${\mathcal{A}_{\mathfrak{n}}(a,b,c)}$$ , $${\mathcal{B}_{\mathfrak{n}}}$$ and $${\mathcal{C}_{\mathfrak{n}}}$$ , that are close to the braid algebra. They allow to build solutions to the Yang-Baxter equation with spectral parameters. The construction is based on a baxterisation procedure, similar to the one used in the context of Hecke or BMW algebras. The $${\mathcal{A}_{\mathfrak{n}}(a,b,c)}$$ algebra depends on three arbitrary parameters, and when the parameter a is set to zero, we recover the algebra $${\mathcal{M}_{\mathfrak{n}}(b,c)}$$ already introduced elsewhere for purpose of baxterisation. The Hecke algebra (and its baxterisation) can be recovered from a coset of the $${\mathcal{A}_{\mathfrak{n}}(0,0,c)}$$ algebra. The algebra $${\mathcal{A}_{\mathfrak{n}}(0,b,-b^2)}$$ is a coset of the braid algebra. The two other algebras $${\mathcal{B}_{\mathfrak{n}}}$$ and $${\mathcal{C}_{\mathfrak{n}}}$$ do not possess any parameter, and can be also viewed as a coset of the braid algebra.
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