A Nonvanishing Theorem for Q-divisors

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We prove a non-vanishing theorem of the cohomology H^0 of the adjoint divisor K_X + L' where L' is the round up of a nef and big Q-divisor L.
Journal of Algebra, to appear (17 pages)

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Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/74908

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0504314
 http://arxiv.org/abs/math/0504314

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arXiv