Abstract
We prove a short, root-system uniform, combinatorial classification of Levi-spherical Schubert varieties for any generalized flag variety G/B of finite Lie type. We apply this to the study of multiplicity-free decompositions of a Demazure module into irreducible representations of a Levi subgroup.
Original language | English (US) |
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Article number | 109486 |
Journal | Advances in Mathematics |
Volume | 439 |
DOIs | |
State | Published - Mar 2024 |
Keywords
- Demazure modules
- Levi subgroups
- Schubert varieties
- Spherical varieties
- Toric varieties
ASJC Scopus subject areas
- General Mathematics