Parameter-dependent associative Yang-Baxter equations and Poisson brackets

Abstract

We discuss associative analogues of classical Yang-Baxter equation meromorphically dependent on parameters. We discover that such equations enter in a description of a general class of parameter-dependent Poisson structures and double Lie and Poisson structures in sense of M. Van den Bergh. We propose a classification of all solutions for one-dimensional associative Yang-Baxter equations.

18 pages, LATEX2, ws-ijgmmp style. Few typos corrected, aknowledgements added

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