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arXiv · 1007.3026

Generic Vanishing Index and the Birationality of the Bicanonical Map of Irregular Varieties

Martí Lahoz
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Abstract

We prove that any smooth complex projective variety with generic vanishing index bigger or equal than 2 has birational bicanonical map. Therefore, if X is a smooth complex projective variety X with maximal Albanese dimension and non-birational bicanonical map, then the Albanese image of X is fibered by subvarieties of codimension at most 1 of an abelian subvariety of Alb X.

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Martí Lahoz. 2011-11-27. Generic Vanishing Index and the Birationality of the Bicanonical Map of Irregular Varieties. https://arxiv.org/abs/1007.3026

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