Double Bruhat cells and total positivity

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We study intersections of opposite Bruhat cells in a semisimple complex Lie group, and associated totally nonnegative varieties.
45 pages, 8 figures; for color version, see http://www-math.mit.edu/~fomin/papers.html

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Representation Theory, Algebraic Geometry, Combinatorics, Quantum Algebra, 22E46; 05E15; 15A23

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http://salesiana.dossiersoluciones.com/handle/123456789/76599

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9802056
 http://arxiv.org/abs/math/9802056

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arXiv