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Cartan decomposition of the moment map

Complex Variables 2007-05-23 v1 Representation Theory Symplectic Geometry

Abstract

We investigate a class of actions of real Lie groups on complex spaces. Using moment map techniques we establish the existence of a quotient and a version of Luna's slice theorem as well as a version of the Hilbert-Mumford criterion. A global slice theorem is proved for proper actions. We give new proofs of results of Mostow on decompositions of groups and homogeneous spaces.

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Cite

@article{arxiv.math/0502515,
  title  = {Cartan decomposition of the moment map},
  author = {P. Heinzner and G. W. Schwarz},
  journal= {arXiv preprint arXiv:math/0502515},
  year   = {2007}
}

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27 pages