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A criterion of openness of a family of nef line bundles |
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| Authors: | Atsushi Moriwaki |
| Institution: | (1) Department of Mathematics Faculty of Science, Kyoto University, 606-01 Kyoto, Japan |
| Abstract: | Letf:X→S be a projective morphism of noetherian schemes andL a line bundle onX. In this note we will give a condition for openness of the setS L nef ={∈S‖L s is nef onX s }. This article was processed by the author using the Springer-Verlag TEX mamath macro package 1990 |
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