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Algèbre non commutative, groupes quantiques et invariants Septième contact Franco-Belge, Reims, Juin 1995
J. Alev, G. Cauchon (Éd.)
Séminaires et Congrès 2 (1997), 304 pages
Dense Orbits in Orbital Varieties in sln
Anna MELNIKOV
Séminaires et Congrès 2 (1997), 281-294
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Résumé :
Let be a nilpotent orbit in the Lie algebra and let be an orbital variety contained in . Let be the largest parabolic subgroup of stabilizing . We describe nilpotent orbits such that all the orbital varieties in them have a dense orbit and show that for n big enough the majority of nilpotent orbits do not fulfill this.
Class. math. : 17B20, 17B35, 14M99