paper

Strong generic vanishing and a higher dimensional Castelnuovo-de Franchis inequality

arXiv:0808.2444 · doi:10.1215/00127094-2009-051

Abstract

We extend to manifolds of arbitrary dimension the Castelnuovo-de Franchis inequality for surfaces. The proof is based on the theory of Generic Vanishing and higher regularity, and on the Evans-Griffith Syzygy Theorem in commutative algebra. Along the way we give a positive answer, in the setting of Kähler manifolds, to a question of Green-Lazarsfeld on the vanishing of higher direct images of Poincaré bundles. We indicate generalizations to arbitrary Fourier-Mukai transforms.

12 pages; some improvements according to suggestions from the referees, to appear in Duke Math. J

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