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arXiv · 0806.1507

Relative Chow-Kunneth decompositions for conic bundles and Prym varieties

Jan Nagel·Morihiko Saito
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Abstract

We construct a relative Chow-Kunneth decomposition for a conic bundle over a surface such that the middle projector gives the Prym variety of the associated double covering of the discriminant of the conic bundle. This gives a refinement (up to an isogeny) of Beauville's theorem on the relation between the intermediate Jacobian of the conic bundle and the Prym variety of the double covering.

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Jan Nagel, Morihiko Saito. 2009-04-08. Relative Chow-Kunneth decompositions for conic bundles and Prym varieties. https://arxiv.org/abs/0806.1507

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