Let G be a simple algebraic group over an algebraically closed field k of bad characteristic. We classify the spherical unipotent conjugacy classes of G. We also show that if the characteristic of k is 2, then the fixed point subgroup of every involutory automorphism (involution) of G is a spherical subgroup of G.
A CLASSIFICATION OF UNIPOTENT SPHERICAL CONJUGACY CLASSES IN BAD CHARACTERISTIC
COSTANTINI, MAURO
2012
Abstract
Let G be a simple algebraic group over an algebraically closed field k of bad characteristic. We classify the spherical unipotent conjugacy classes of G. We also show that if the characteristic of k is 2, then the fixed point subgroup of every involutory automorphism (involution) of G is a spherical subgroup of G.File in questo prodotto:
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