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arXiv · 2403.07349

Twists, Eisenstein series, and Instantons in Local Mirror Symmetry

Andreas Malmendier·Michael T. Schultz
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Abstract

We propose a mechanism for computing the genus zero invariants of local Calabi-Yau fourfolds arising as the total space of the canonical bundle of a rank-1 Fano threefold. Our method relies heavily on modular parameterizations of the associated Landau-Ginzburg model, as well as extension regulator classes and higher normal functions studied by Doran and Kerr in this setting. The generating function of the local invariants is proposed as a functional inverse of a weight-4 modular form of Eisenstein type that is naturally computed from the mirror data, in analogy with some known results for local threefolds that computes genus zero Gopakumar-Vafa invariants. Using the twist construction of Doran and the first named author, these two constructions are connected via Doran's generalized functional invariant map on the periods.

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Andreas Malmendier, Michael T. Schultz. 2024-03-12. Twists, Eisenstein series, and Instantons in Local Mirror Symmetry. https://arxiv.org/abs/2403.07349

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