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arXiv · 2003.12930

Beilinson-Drinfeld Schubert varieties and global Demazure modules

Ilya Dumanski·Evgeny Feigin·Michael Finkelberg
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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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Ilya Dumanski, Evgeny Feigin, Michael Finkelberg. 2020-03-29. Beilinson-Drinfeld Schubert varieties and global Demazure modules. https://doi.org/10.1017/fms.2021.36

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