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math.QA2001
Quiver varieties and t-analogs of q-characters of quantum affine algebras
Hiraku Nakajima
Let us consider a specialization of an untwisted quantum affine algebra of type at a nonzero complex number, which may or may not be a root of unity. The Grothendieck ring of…
math.QA2001★ 102 cited
Quiver varieties and tensor products
Hiraku Nakajima
In this article, we give geometric constructions of tensor products in various categories using quiver varieties. More precisely, we introduce a lagrangian subvariety $\Zl$ in a qu…