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Relative Chow–Künneth Decompositions for Conic Bundles and Prym Varieties
We construct a relative Chow–Künneth 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 …