Singular loci of Bruhat-Hibi toric varieties

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For the toric variety X associated to the Bruhat poset of Schubert varieties in a minuscule G/P, we describe the singular locus in terms of the faces of the associated polyhedral cone. We further show that the singular locus is pure of codimension 3 in X.
24 pages

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Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/169795

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.2392
 http://arxiv.org/abs/0707.2392
 Journal of Algebra 319 (2008)

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arXiv