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A connectedness property of algebraic moment maps | Friedrich Knop
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9 Aug 2001 | Journal: | J. Algebra 258 (2002), 122-136 | Subject: | Algebraic Geometry; Representation Theory; Symplectic Geometry MSC-class: 14L10;53D20 | math.AG math.RT math.SG | Abstract: | Let a connected reductive group G act on the smooth connected variety X. The cotangent bundle of X is a Hamiltonian G-variety. We show that its "total moment map" has connected fibers. This is an expanded version of section 6 of my paper dg-ga/9712010 on Weyl groups of Hamiltonian manifolds. | Source: | arXiv, math.AG/0108069 | Services: | Forum | Review | PDF | Favorites |
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