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math.AG2023
Oriented embedding functors of tori as homogeneous spaces
Philippe Gille, Ting-Yu Lee
We provide a characterization of homogeneous spaces under a reductive group scheme such that the geometric stabilizers are maximal tori. The quasi-split case over a semilocal base…
math.AG2022
Unipotent Subgroups of Stabilizers
Phillipe Gille, Robert Guralnick
We consider semi-continuity of certain dimensions on group schemes.