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2016-11-21
Reducedness of affine Grassmannian slices in type A
Joel KamnitzerDinakar MuthiahAlex WeekesOded Yacobi
文献摘要
We prove in type A a conjecture which describes the ideal of transversal slices to spherical Schubert varieties in the affine Grassmannian. As a corollary, we prove a modular description (due to Finkelberg-Mirkovi'c) of the spherical Schubert varieties.
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