Nef dimension of minimal models

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We reduce the Abundance Conjecture in dimension 4 to the following numerical statement: if the canonical divisor K is nef and has maximal nef dimension, then K is big. From this point of view, we ``classify'' in dimension 2 nef divisors which have maximal nef dimension, but which are not big.
LaTex, 14 pages

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Algebraic Geometry, 14E30; 14J10

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http://salesiana.dossiersoluciones.com/handle/123456789/66358

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0301305
 http://arxiv.org/abs/math/0301305

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arXiv