Residues and filtered D-modules

Details Residues and filtered D-modules Residues and filtered D-modules

2010-05-04

arxiv.org/abs/1005.0543v1

Mathematics

Algebraic Geometry

31 pages

Scientific paper

For an embedding of sufficiently high degree of a smooth projective variety X into projective space, we use residues to define a filtered holonomic D-module (M, F) on the dual projective space. This gives a concrete description of the intermediate extension to a Hodge module on P of the variation of Hodge structure on the middle-dimensional cohomology of the hyperplane sections of X. We also establish many results about the sheaves F_k M, such as positivity, vanishing theorems, or reflexivity.

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