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We study Virasoro constraints for Gromov-Witten theory of a product variety when one factor has semi-simple quantum cohomology.

Algebraic Geometry · Mathematics 2026-03-26 Hsian-Hua Tseng

Virasoro constraints for orbifold Gromov-Witten theory are described. These constraints are applied to the degree zreo, genus zero orbifold Gromov-Witten potentials of the weighted projective stacks $\mathbb{P}(1,N)$, $\mathbb{P}(1,1,N)$…

Algebraic Geometry · Mathematics 2010-04-09 Yunfeng Jiang , Hsian-Hua Tseng

The aim of Part II is to explore the technique of invariance of tautological equations in the realm of Gromov--Witten theory. The main result is a proof of Invariance Theorem (Invariance Conjecture~1 in [14]), via the techniques from…

Algebraic Geometry · Mathematics 2007-05-23 Y. -P. Lee

We define a new Gromov-Witten theory relative to simple normal crossing divisors as a limit of Gromov-Witten theory of multi-root stacks. Several structural properties are proved including relative quantum cohomology, Givental formalism,…

Algebraic Geometry · Mathematics 2023-08-23 Hsian-Hua Tseng , Fenglong You

These are lecture notes of a C.I.M.E. course I gave at Cetraro, June 6-11 2005. The theory described is the version of Chen-Ruan's Gromov-Witten theory of orbifolds developed by Graber, Vistoli and me in the algebraic setting, but with…

Algebraic Geometry · Mathematics 2007-05-23 Dan Abramovich

The Virasoro conjecture is a conjectured sequence of relations among the descendent Gromov-Witten invariants of a smooth projective variety in all genera; the only varieties for which it is known to hold are a point (Kontsevich) and…

Algebraic Geometry · Mathematics 2007-05-23 Ezra Getzler

This an expository article on Givental's axiomatic Gromov--Witten theory and some of its applications.

Algebraic Geometry · Mathematics 2008-09-11 Y. -P. Lee

Let X be a Gorenstein orbifold and let Y be a crepant resolution of X. We state a conjecture relating the genus-zero Gromov--Witten invariants of X to those of Y, which differs in general from the Crepant Resolution Conjectures of Ruan and…

Algebraic Geometry · Mathematics 2014-11-11 Tom Coates , Hiroshi Iritani , Hsian-Hua Tseng

In This paper, we survey recent progress on the theory of Gromov- Witten invariants on Hilbert schemes of points mainly on elliptic surfaces and simply connected minimal surface of general type. In particular, we focus on the aspects of…

Algebraic Geometry · Mathematics 2024-12-23 Mazen Alhwaimel

Using new explicit formulas for the stationary GW/PT descendent correspondence for nonsingular projective toric 3-folds, we show that the correspondence intertwines the Virasoro constraints in Gromov-Witten theory for stable maps with the…

Algebraic Geometry · Mathematics 2020-08-31 M. Moreira , A. Oblomkov , A. Okounkov , R. Pandharipande

The first part of this work constructs positive-genus real Gromov-Witten invariants of real-orientable symplectic manifolds of odd "complex" dimensions; the present part focuses on their properties that are essential for actually working…

Symplectic Geometry · Mathematics 2018-02-27 Penka Georgieva , Aleksey Zinger

We collect geometric properties of the all-genus real Gromov-Witten theory and provide updates on its development since its introduction in 2015. We bring attention to a modification of the original construction of this theory which is…

Symplectic Geometry · Mathematics 2023-11-21 Penka Georgieva , Aleksey Zinger

The purpose of this note is to share some observations and speculations concerning the asymptotic behavior of Gromov-Witten invariants. They may be indicative of some deep phenomena in symplectic topology that in full generality are outside…

Algebraic Geometry · Mathematics 2017-08-17 Aleksey Zinger

In this paper, we define genus-zero relative Gromov--Witten invariants with negative contact orders. Using this, we construct relative quantum cohomology rings and Givental formalism. A version of Virasoro constraints also follows from it.

Algebraic Geometry · Mathematics 2019-11-15 Honglu Fan , Longting Wu , Fenglong You

We state and prove a topological recursion relation that expresses any genus-g Gromov-Witten invariant of a projective manifold with at least a (3g-1)-st power of a cotangent line class in terms of invariants with fewer cotangent line…

Algebraic Geometry · Mathematics 2007-05-23 Andreas Gathmann

The goal of these notes is to provide an informal introduction to Gromov-Witten theory with an emphasis on its role in counting curves in surfaces. These notes are based on a talk given at the Fields Institute during a week-long conference…

Algebraic Geometry · Mathematics 2014-07-07 Simon Rose

We describe properties of the previously constructed all-genus real Gromov-Witten theory in the style of Kontsevich-Manin's axioms and other classical equations and reconstruction results of complex Gromov-Witten theory.

Algebraic Geometry · Mathematics 2023-11-21 Penka Georgieva , Aleksey Zinger

We present an overview of Gromov-Witten theory and its links with string theory compactifications, focussing on the GW potential as the generating function for topological string amplitudes at genus $g$. Restricting to Calabi-Yau target…

High Energy Physics - Theory · Physics 2007-05-23 Daniel Grunberg

We propose a conjectural determination of the Gromov-Witten theory of a root stack along a smooth divisor. We verify our conjecture under an additional assumption.

Algebraic Geometry · Mathematics 2016-06-14 Hsian-Hua Tseng , Fenglong You

These brief notes record our puzzles and findings surrounding Givental's recent conjecture which expresses higher genus Gromov-Witten invariants in terms of the genus-0 data. We limit our considerations to the case of a projective line,…

High Energy Physics - Theory · Physics 2009-11-07 Jun S. Song , Yun S. Song
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