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RTT presentation of finite W-algebras

C. Briot, E. Ragoucy

math.QAarXiv:math/0005111

Abstract

We construct a wide class of finite W-algebras as truncations of Yangians. These truncations correspond to algebra homomorphisms and allow to construct the W-algebras as exchange algebras, the R-matrix being the Yangian's one. As an application, we classify all irreducible finite dimensionnal representations of these W-algebras and determine their center.

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