Geodesic
The nonvanishing theorem
Izvestiya. Mathematics , Tome 26 (1986) no. 3, pp. 591-604.

Voir la notice de l'article provenant de la source Math-Net.Ru

The main result of the paper is a nonvanishing theorem that is a sufficient condition for nontriviality of the zeroth cohomology group of inverse sheaves. In addition, applications of this theorem to multidimensional projective geometry are indicated and problems illuminating further insight into the theory of Mori extremal rays are formulated. Bibliography: 14 titles. 
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V. V. Shokurov. The nonvanishing theorem. Izvestiya. Mathematics , Tome 26 (1986) no. 3, pp. 591-604. http://geodesic.mathdoc.fr/item/IM2_1986_26_3_a5/

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