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Open Gromov-Witten invariants via lozalization with $\mathbb{C}^{*}$ (not $S^1$) action
Amplitudes of open A-model on a Calabi-Yau 3-fold $X$ with branes are given by the open Gromov-Witten invariants of $X$. It is known how to compute them if there is a toric action on a manifold, which ...