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arXiv · 1601.04049

Topological recursion for open intersection numbers

Brad Safnuk
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Abstract

We present a topological recursion formula for calculating the intersection numbers defined on the moduli space of open Riemann surfaces. The spectral curve is $x = \frac{1}{2}y^2$, the same as spectral curve used to calculate intersection numbers for closed Riemann surfaces, but the formula itself is a variation of the usual Eynard-Orantin recursion. It looks like the recursion formula used for spectral curves of degree 3, and also includes features present in $\beta$-deformed models. The recursion formula suggests a conjectural refinement to the generating function that allows for distinguishing intersection numbers on moduli spaces with different numbers of boundary components.

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Brad Safnuk. 2016-01-15. Topological recursion for open intersection numbers. https://arxiv.org/abs/1601.04049

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