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arXiv · 1604.07250

A graphical interface for the Gromov--Witten theory of curves

Renzo Cavalieri·Paul Johnson·Hannah Markwig·Dhruv Ranganathan
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Abstract

We explore the explicit relationship between the descendant Gromov--Witten theory of target curves, operators on Fock spaces, and tropical curve counting. We prove a classical/tropical correspondence theorem for descendant invariants and give an algorithm that establishes a tropical Gromov--Witten/Hurwitz equivalence. Tropical curve counting is related to an algebra of operators on the Fock space by means of bosonification. In this manner, tropical geometry provides a convenient "graphical user interface" for Okounkov and Pandharipande's celebrated GW/H correspondence. An important goal of this paper is to spell out the connections between these various perspectives for target dimension 1, as a first step in studying the analogous relationship between logarithmic descendant theory, tropical curve counting, and Fock space formalisms in higher dimensions.

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Renzo Cavalieri, Paul Johnson, Hannah Markwig, Dhruv Ranganathan. 2016-04-25. A graphical interface for the Gromov--Witten theory of curves. https://arxiv.org/abs/1604.07250

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