|
|||||
|
|
|
|
|
|
|
|
|
Desingularizations of
some unstable orbit closures
Mark Stephen Reeder |
|
Vol. 167 (1995), No. 2, 327–343
|
Abstract |
|
Let σ be a semisimple automorphism of a connected reductive group G, and let Gσ be the fixed points of σ. We consider the Gσ-orbits on the space of nilpotent elements in an eigenspace of dσ. We give a desingularization of the orbit closures and relate the Gσ-orbits to the G-orbits. Along the way, we describe the fixed points of σ on a flag variety G∕P where P is a σ-stable parabolic subgroup of G. |
Mathematical Subject Classification 2000
Primary: 22E46
|
Milestones
Received: 17 September 1992
Revised: 12 January 1993
Published: 1 February 1995
|
Authors |
| Mark Stephen Reeder | |
|
