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Vanishing of sections of vector bundles on 0-dimensional schemes

Edoardo Ballico (1999)

Commentationes Mathematicae Universitatis Carolinae

Here we give conditions and examples for the surjectivity or injectivity of the restriction map H 0 ( X , F ) H 0 ( Z , F | Z ) , where X is a projective variety, F is a vector bundle on X and Z is a “general” 0 -dimensional subscheme of X , Z union of general “fat points”.

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