科研之友
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摘要
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.
- 出版日期2010-12
