2 papers
math.AG2026
Connecting orbits in quasiaffine spherical varieties via -root subgroups
Roman Avdeev, Vladimir Zhgoon
Given a connected reductive algebraic group with a Borel subgroup and a quasiaffine spherical -variety , we prove that every -orbit contained in the regular lo…
math.AG2024
Root subgroups on horospherical varieties
Roman Avdeev, Vladimir Zhgoon
Given a connected reductive algebraic group and a spherical -variety , a -root subgroup on is a one-parameter additive group of automorphisms of normalized by…