Abstract
Given a K3 surface S, we show that the relative intermediate Jacobian of the universal family of Fano 3-folds V containing S as an anticanonical divisor is a Lagrangian fibration.
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Markushevich, D. An integrable system of K3-Fano flags. Math. Ann. 342, 145–156 (2008). https://doi.org/10.1007/s00208-008-0227-2
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DOI: https://doi.org/10.1007/s00208-008-0227-2