Nef line bundle
http://dbpedia.org/resource/Nef_line_bundle an entity of type: Abstraction100002137
In algebraic geometry, a line bundle on a projective variety is nef if it has nonnegative degree on every curve in the variety. The classes of nef line bundles are described by a convex cone, and the possible contractions of the variety correspond to certain faces of the nef cone. In view of the correspondence between line bundles and divisors (built from codimension-1 subvarieties), there is an equivalent notion of a nef divisor.
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대수기하학에서 네프 가역층(nef可逆層, 영어: nef invertible sheaf)은 부분 대수 곡선에 제한하였을 때 그 차수가 항상 음이 아닌 정수가 되는 가역층이다.
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네프 가역층
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Nef line bundle
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3404309
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1016731476
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In algebraic geometry, a line bundle on a projective variety is nef if it has nonnegative degree on every curve in the variety. The classes of nef line bundles are described by a convex cone, and the possible contractions of the variety correspond to certain faces of the nef cone. In view of the correspondence between line bundles and divisors (built from codimension-1 subvarieties), there is an equivalent notion of a nef divisor.
rdf:langString
대수기하학에서 네프 가역층(nef可逆層, 영어: nef invertible sheaf)은 부분 대수 곡선에 제한하였을 때 그 차수가 항상 음이 아닌 정수가 되는 가역층이다.
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13130