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math.QA2000
Standard modules of quantum affine algebras
Michela Varagnolo, Eric Vasserot
We give a proof of the cyclicity conjecture of Akasaka-Kashiwara, for simply laced types, via quiver varieties. We get also an algebraic characterization of the standard modules.
math.AG2000
On the action of the dual group on the cohomology of perverse sheaves on the affine grassmannian
E. Vasserot
It was proved by Ginzburg and Mirkovic-Vilonen that the -equivariant perverse sheaves on the affine grassmannian of a connected reductive group form a tensor category equ…