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Elliptic Sklyanin algebras. (Russian) Zbl 0687.17001
A Sklyanin algebra in \(n\) indeterminates is a deformation of the polynomial algebra in the class of \(\mathbb Z\)-graded quadratic (i.e. whose relations are of degree 2) algebras. Such algebras are of interest because they have a describable representation theory relevant to integrable models of statistical physics as can be seen from (scant) references.
In his original work E. K. Sklyanin constructed a deformation (here denoted by \(Q_{4,1}({\mathcal E},\tau))\) of the polynomial algebra in 4 indeterminates parametrized by an elliptic curve \({\mathcal E}\) and its point \(\tau\in {\mathcal E}\). In the paper there are constructed similar algebras \(Q_{n,k}({\mathcal E},\tau)\), where \(k\in (\mathbb Z/n\mathbb Z)^*\), and their centers and representations (in terms of symplectic folias similar to the orbit method) are described. Relations in these algebras are described in terms of elliptic solutions of Yang-Baxter equations. A number of other examples given by V. Cherednik, V. Drinfel’d, A. Vershik in their papers on quadratic algebras are interpreted as particular cases of \(Q_{n,k}({\mathcal E},\tau).\)
The paper is a continuation of an easier to understand but harder to get preprint by the authors [“Sklyanin algebras associated with an elliptic curve”, Inst. Teor. Fiz., Kiev, 1988 (Russian), cf. ref. 8.]
Reviewer: D.Leites

MSC:
17A45 Quadratic algebras (but not quadratic Jordan algebras)
16T25 Yang-Baxter equations
16S80 Deformations of associative rings
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