A Tensor Space Representation of the Symplectic Blob Algebra

The symplectic blob algebras are a family of finite dimensional noncommutative algebras over $\mathbb{Z}[X_1,X_2,X_3,X_4,X_5,X_6]$ that can be defined in terms of planar diagrams in a way that extends the Temperley-Lieb and (ordinary) blob algebras. In this paper we construct a new "tensor space" representation of the symplectic blob algebra $\mathcal{A} \otimes \sba$ for each $n \in \mathbb{N}$, for $\mathcal{A}$ a particular commutative ring with indeterminates. The form of this representation is motivated by the XXZ representation of the Temperley-Lieb algebra $\TL_n$ \cite{jimbo86} and the related Martin-Woodcock representation of the blob algebra $b_n$ \cite{martinwoodcock2003}. For $k$ an algebraically closed field, and for any $(δ,δ_L,δ_R,κ_L,κ_R,κ) \in k^{6}$, the algebra $\sba$ specialises to a $k$-algebra $\sba(δ,δ_L,δ_R,κ_L,κ_R,κ)$. For any such specialisation, our representation passes to a $\sba(δ,δ_L,δ_R,κ_L,κ_R,κ)$-module $\mathcal{V}(n)$.

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