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Beilinson-Drinfeld Schubert varieties and global Demazure modules (2003.12930v3)
Published 29 Mar 2020 in math.RT and math.AG
Abstract: We compute the spaces of sections of powers of the determinant line bundle on the spherical Schubert subvarieties of the Beilinson- Drinfeld affine Grassmannians. The answer is given in terms of global Demazure modules over the current Lie algebra.
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