Skew-symmetric Vanishing Lattices and Intersections of Schubert Cells

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We prove that the number of connected components in the intersection of two open opposite Schubert cells in the variety of complete real n-dimensional flags equals 3*2^{n-1} for n>5.
24 pages, 7 figures, AMSTeX, submitted to IMRN

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Algebraic Geometry, Combinatorics, 14M15 (Primary) 14N10, 14P25 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/76627

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9802093
 http://arxiv.org/abs/math/9802093

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arXiv