Effective base point freeness on normal surfaces

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We give the new effective criterion for the global generation of the adjoint bundle on normal surfaces with a boundary. We could make the invariant δsmall a bit more on log-terminal singular point, and then we could prove the theorem described in my previous paper "alg-geom/9612018" as a corollary.
AmS-TeX 2.1 with 4 PostScript figures, 14pages

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Algebraic Geometry, 14J17; 14C20; 14E15

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http://salesiana.dossiersoluciones.com/handle/123456789/77107

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9807002
 http://arxiv.org/abs/math/9807002

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arXiv