Friedrich Knop
Published 2013-03-11, updated 2013-11-23Version 3
We prove some fundamental structural results for spherical varieties in arbitrary characteristic. In particular, we study Luna's two types of localization and use it to analyze spherical roots, colors and their interrelation. At the end, we propose a preliminary definition of a p-spherical system.
Comments: v1: 25 pages; v2: 21 pages, reformatted to LaTeX, otherwise minor changes; v3: 22 pages, final version
Pl\:ucker relations and spherical varieties: application to model varieties
Spherical varieties, functoriality, and quantization
Spherical subgroups of Kac-Moody groups and transitive actions on spherical varieties
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