Geodesic
On~the closed cone of curves of algebraic 3-folds
Izvestiya. Mathematics , Tome 24 (1985) no. 1, pp. 193-198

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

In this paper the author establishes, under natural conditions, the local polyhedrality of the closed cone of curves of a three-dimensional algebraic variety in the part that is negative with respect to the canonical class. In particular, it is shown that there always exists an extremal ray giving a contraction. The results can be used in three-dimensional birational geometry. Bibliography: 7 titles. 
@article{IM2_1985_24_1_a7,
     author = {V. V. Shokurov},
     title = {On~the closed cone of curves of algebraic 3-folds},
     journal = {Izvestiya. Mathematics },
     pages = {193--198},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1985_24_1_a7/}
}
TY  - JOUR
AU  - V. V. Shokurov
TI  - On~the closed cone of curves of algebraic 3-folds
JO  - Izvestiya. Mathematics 
PY  - 1985
SP  - 193
EP  - 198
VL  - 24
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1985_24_1_a7/
LA  - en
ID  - IM2_1985_24_1_a7
ER  - 
%0 Journal Article
%A V. V. Shokurov
%T On~the closed cone of curves of algebraic 3-folds
%J Izvestiya. Mathematics 
%D 1985
%P 193-198
%V 24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1985_24_1_a7/
%G en
%F IM2_1985_24_1_a7
V. V. Shokurov. On~the closed cone of curves of algebraic 3-folds. Izvestiya. Mathematics , Tome 24 (1985) no. 1, pp. 193-198. http://geodesic.mathdoc.fr/item/IM2_1985_24_1_a7/