The minimal degeneration singularities in the affine Grassmannians

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The minimal degeneration singularities in the affine Grassmannians of simple simply-laced algebraic groups are determined to be either Kleinian singularities of type A, or closures of minimal orbits in nilpotent cones. The singularities for non-simply-laced types are studied by intersection cohomology and equivariant Chow group methods.
12 pages, latex

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Algebraic Geometry, Representation Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/67388

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0305095
 http://arxiv.org/abs/math/0305095

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arXiv