On Deformed W-algebras and Quantum Affine Algebras
نویسنده
چکیده
We discuss some aspects of the deformed W-algebras Wq,t[g]. In particular, we derive an explicit formula for the Kac determinant, and discuss the center when t is a primitive k-th root of unity. The relation of the structure of Wq,t[g] to the representation ring of the quantum affine algebra Uq(ĝ), as discovered recently by Frenkel and Reshetikhin, is further elucidated in some examples. ADP-97-49/M60 USC-97/021 math.QA/9801112 January 1998
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