Unipotent elements in small characteristic, IV
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We consider the variety of nilpotent elements in the dual of the Lie algebra of a reductive group over an algebraically closed field. We propose a definition of a partition of this variety into locally closed smooth subvarieties indexed by the unipotent classes in the corresponding group over the complex numbers. We obtain explicit results in types A, C and D.
Dedicated to Vladimir Morozov on the 100th anniversary of his birth.
DepartmentMassachusetts Institute of Technology. Department of Mathematics
Lusztig, G. “Unipotent Elements in Small Characteristic, IV.” Transformation Groups 15.4 (2010): 921–936. Web.
Author's final manuscript