Forum of Mathematics, Sigma (Jan 2025)

Open WDVV equations and Frobenius structures for toric Calabi-Yau 3-folds

  • Song Yu,
  • Zhengyu Zong

DOI
https://doi.org/10.1017/fms.2025.14
Journal volume & issue
Vol. 13

Abstract

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Let X be a toric Calabi-Yau 3-fold and let $L\subset X$ be an Aganagic-Vafa outer brane. We prove two versions of open WDVV equations for the open Gromov-Witten theory of $(X,L)$ . The first version of the open WDVV equation leads to the construction of a semi-simple (formal) Frobenius manifold, and the second version leads to the construction of a flat (formal) F-manifold.

Keywords