Gromov-Witten theory of elliptic orbifold P^1 and quasi-modular forms

Details Gromov-Witten theory of elliptic orbifold P^1 and quasi-modular forms Gromov-Witten theory of elliptic orbifold P^1 and quasi-modular forms

2011-06-12

arxiv.org/abs/1106.2321v1

Mathematics

Algebraic Geometry

49 pages

Scientific paper

In this paper we prove that the GW invariants of the elliptic orbifold lines with weights (3,3,3), (4,4,2), and (6,3,2) are quasi-modular forms. Our method is based on Givental's higher genus reconstruction formalism applied to the settings of Saito's Frobenius structures for simple elliptic singularities. Our results are part of a larger project whose goal is to prove the Landau-Ginzburg/Calabi-Yau correspondence for simple elliptic singularities. The correspondence describes a relation between Gromov-Witten theory (of a certain hypersurface) and Fan-Jarvis-Ruan-Witten theory (of a certain Landau-Ginzburg potential). Roughly, the main statement is that the Saito's Frobenius manifold for simple elliptic singularities has some special points such that locally near these points the Frobenius structure governs one of the two theories. The local part of the correspondence is established in a companion article by M. Krawitz and Y. Shen, while here we describe the global picture.

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