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Geometric Conditions for Twisted O-Sphericity

Author:
Arieh Zimmerman
Keyword:
Mathematics, Algebraic Geometry, Algebraic Geometry (math.AG)
journal:
--
date:
2023-08-01 16:00:00
Abstract
The geometric condition defining a spherical variety for a reductive algebraic group was generalized in [AG21], with applications to representation theory. We twist by a character to generalize this definition, and show its equivalence to a property of group actions that generalizes Theorem B of [AG21]. We also present an example to demonstrate the necessity of this generalization.
PDF: Geometric Conditions for Twisted O-Sphericity.pdf
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