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math.QA2002★ 5 cited
Traces of intertwiners for quantum groups and difference equations, II
Pavel Etingof, Olivier Schiffmann, Alexander Varchenko
In this paper we study twisted traces of products of intertwining operators for quantum affine algebras. They are interesting special functions, depending on two weights lambda, mu…
math.QA2002
Noncommutative projective curves and quantum loop algebras
Olivier Schiffmann
We generalize a theorem of Kapranov by showing that the Hall algebra of the category of coherent sheaves on a weighted projective line (over a finite field) provides a realization…