Compatibility conjecture for the birational Abel–Jacobi correspondence

For generic VΛ2WV\subset\Lambda^2W^*, let XX and YY be the associated Calabi–Yau varieties, and let F(Y)F(Y) and H(X)H(X) be the birational moduli spaces described in the source. Since H(X)H(X) is a moduli space on a Calabi–Yau manifold of dimension 2n42n-4, it carries a natural (2n4)(2n-4)-form. Compatibility conjecture. The birational isomorphism between F(Y)F(Y) and H(X)H(X) is compatible with their (2n4)(2n-4)-forms. The preceding theorem establishes that F(Y)F(Y), G(Y)G(Y), and H(X)H(X) are birational for generic VV; the supplied text does not state whether this compatibility assertion has been proved.

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Primary source

A. Kuznetsov, L. Manivel and D. Markushevich, “Abel-Jacobi maps for hypersurfaces and non commutative Calabi-Yau's”, arXiv:0806.1154 (2009).

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