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On quiver varieties and affine Grassmanians of type A
Quiver varieties affine nilpotent orbit duality
2014/12/29
We construct Nakajima's quiver varieties of type A in terms of affine Grassmannians of type A. This gives a compactification of quiver varieties and a decomposition of affine Grassmannians into a disj...
Quiver Coefficients are Schubert Structure Constants
Fulton k theory quiver integer linear combination quiver coefficient
2014/12/25
Buch and Fulton established a formula for the cohomology class of a quiver variety [9], which Buch later extended to K-theory [5]. The K-theory formula expresses a quiver class as an integer linear co...