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Generalized Kostant convexity theorems

Author: Philip Foth
Journal: Proc. Amer. Math. Soc. 137 (2009), 297-301
MSC (2000): Primary 53D20; Secondary 53D17, 22E15
Published electronically: May 15, 2008
MathSciNet review: 2439453
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Abstract: We give a simple proof of the equality of the spectra for projections to Levi factors in the linear and non-linear cases, generalizing a classical theorem of Kostant.

References [Enhancements On Off] (What's this?)

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Additional Information

Philip Foth
Affiliation: Department of Mathematics, University of Arizona, Tucson, Arizona 85721-0089

Keywords: Reductive Lie group, parabolic subgroup, Poisson Lie group, moment map, convexity.
Received by editor(s): September 4, 2007
Received by editor(s) in revised form: January 7, 2008
Published electronically: May 15, 2008
Communicated by: Gail R. Letzter
Article copyright: © Copyright 2008 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.

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