Principal Gelfand pairs

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Let X=G/K be a connected Riemannian homogeneous space of a real Lie group G. The homogeneous space X is called commutative if the algebra of G-invariant differential operators on X is commutative. We prove an effective commutativity criterion and classify commutative spaces under two mild technical constraints. In particular, we obtain several new examples of commutative homogeneous spaces that are not of Heisenberg type.
31 pages, Latex2e, XY-pic used

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Representation Theory, Symplectic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/70579

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0403419
 http://arxiv.org/abs/math/0403419

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arXiv