Equivariant Littlewood-Richardson Skew Tableaux

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We give a positive equivariant Littlewood-Richardson rule also discovered independently by Molev. Our proof generalizes a proof by Stembridge of the ordinary Littlewood-Richardson rule. We describe a weight-preserving bijection between our indexing tableaux and the Knutson-Tao puzzles.
27 pages; notation simplified in Section 2; other minor stylistic changes; references added

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Algebraic Geometry, Combinatorics, 14M15; 05E10

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http://salesiana.dossiersoluciones.com/handle/123456789/133059

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.3738
 http://arxiv.org/abs/0706.3738

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arXiv