Correspondences between modular Calabi--Yau fiber products
classification
🧮 math.AG
keywords
calabi--yaufiberproductsconstructcorrespondencesrationaladmitdescribe
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We describe two ways to construct finite rational morphisms between fiber products of rational elliptic surfaces with section and some Calabi--Yau manifolds. We use them to construct correspondences between such fiber products that admit at most five singular fibers and rigid Calabi--Yau threefolds.
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