Open Gromov-Witten Invariants from the Augmentation Polynomial

Matthew Mahowald

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arXiv · 1608.02978

Open Gromov-Witten Invariants from the Augmentation Polynomial

Matthew Mahowald

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Abstract

A conjecture of Aganagic and Vafa relates the open Gromov-Witten theory of $X=\mathcal{O}_{\mathbb{P}^{1}}(-1,-1)$ to the augmentation polynomial of Legendrian contact homology. We describe how to use this conjecture to compute genus zero, one boundary component open Gromov-Witten invariants for Lagrangian submanifolds $L_{K}\subset X$ obtained from the conormal bundles of knots $K\subset S^{3}$. This computation is then performed for two non-toric examples (the figure-eight and three-twist knots). For $(r,s)$ torus knots, the open Gromov-Witten invariants can also be computed using Atiyah-Bott localization. Using this result for the unknot and the $(3,2)$ torus knot, we show that the augmentation polynomial can be derived from these open Gromov-Witten invariants.

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Matthew Mahowald. 2016-08-09. Open Gromov-Witten Invariants from the Augmentation Polynomial. https://arxiv.org/abs/1608.02978

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