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Bielliptic surfaces appear as quotient of a product of two elliptic curves and were classified by Bagnera-Franchis. We give a concrete way of computing their GW-invariants with point insertions using a floor diagram algorithm. Using the…

Algebraic Geometry · Mathematics 2024-01-04 Thomas Blomme

Given a smooth target curve $X$, we explore the relationship between Gromov-Witten invariants of $X$ relative to a smooth divisor and orbifold Gromov-Witten invariants of the $r$-th root stack along the divisor. We proved that relative…

Algebraic Geometry · Mathematics 2020-01-06 Hsian-Hua Tseng , Fenglong You

For any smooth complex projective variety X and smooth very ample hypersurface Y in X, we develop the technique of genus zero relative Gromov-Witten invariants of Y in X in algebro-geometric terms. We prove an equality of cycles in the Chow…

Algebraic Geometry · Mathematics 2007-05-23 Andreas Gathmann

We define Gromov-Witten classes and invariants of smooth proper tame Deligne-Mumford stacks of finite presentation over a Dedekind domain. We prove that they are deformation invariants and verify the fundamental axioms. For a smooth proper…

Algebraic Geometry · Mathematics 2013-02-07 Flavia Poma

Gromov-Witten invariants have been constructed to be deformation invariant, but their behavior under other transformations is subtle. In this note we show that logarithmic Gromov-Witten invariants are also invariant under appropriately…

Algebraic Geometry · Mathematics 2017-06-05 Dan Abramovich , Jonathan Wise

We use Noether-Lefschetz theory to study the reduced Gromov--Witten invariants of a holomorphic-symplectic variety of $K3^{[n]}$-type. This yields strong evidence for a new conjectural formula that expresses Gromov-Witten invariants of this…

Algebraic Geometry · Mathematics 2022-02-17 Georg Oberdieck

We study the integral expression of a knot invariant obtained as the second coefficient in the perturbative expansion of Witten's Chern-Simons path integral associated with a knot. One of the integrals involved turns out to be a…

dg-ga · Mathematics 2008-02-03 Xiao-Song Lin , Zhenghan Wang

We prove a $q$-refined tropical correspondence theorem for higher genus descendant logarithmic Gromov--Witten invariants with a $\lambda_g$ class in toric surfaces. Specifically, a generating series of such logarithmic Gromov--Witten…

Algebraic Geometry · Mathematics 2024-12-06 Patrick Kennedy-Hunt , Qaasim Shafi , Ajith Urundolil Kumaran

We describe a formalism based on quantization of quadratic hamiltonians and symplectic actions of loop groups which provides a convenient home for most of known general results and conjectures about Gromov-Witten invariants of compact…

Algebraic Geometry · Mathematics 2007-05-23 Alexander B. Givental

In the symplectic category there is a `connect sum' operation that glues symplectic manifolds by identifying neighborhoods of embedded codimension two submanifolds. This paper establishes a formula for the Gromov-Witten invariants of a…

Symplectic Geometry · Mathematics 2007-05-23 Eleny-Nicoleta Ionel , Thomas H. Parker

The goal of this paper is to give an efficient computation of the 3-point Gromov-Witten invariants of Fano hypersurfaces, starting from the Picard-Fuchs equation. This simplifies and to some extent explains the original computations of…

Differential Geometry · Mathematics 2007-05-23 Hironori Sakai

We compute, by two methods, the genus one degree zero orbifold Gromov-Witten invariants with non-stacky insertions which are exceptional cases of the dilaton and divisor equations. One method involves a detailed analysis of the relevant…

Algebraic Geometry · Mathematics 2012-04-13 Hsian-Hua Tseng

The Welschinger invariants of real rational algebraic surfaces are natural analogues of the genus zero Gromov-Witten invariants. We establish a tropical formula to calculate the Welschinger invariants of real toric Del Pezzo surfaces for…

Algebraic Geometry · Mathematics 2008-03-02 E. Shustin

We show that the standard generating functions for genus 0 two-point twisted Gromov-Witten invariants arising from concavex vector bundles over symplectic toric manifolds are explicit transforms of the corresponding one-point generating…

Algebraic Geometry · Mathematics 2013-06-11 Alexandra Popa

We enumerate, via floor diagrams, complex and real curves in the projective plane blown up in $n$ points on a conic. As an application, we deduce Gromov-Witten and Welschinger invariants of Del Pezzo surfaces. These results are mainly…

Algebraic Geometry · Mathematics 2016-01-22 Erwan Brugalle

We prove a conjecture of Artur Elezi in a generalized form suggested by Givental. Namely, our main result relates genus-0 Gromov--Witten invariants of a bundle space with such invariants of the base, provided that the fiber is a toric…

Algebraic Geometry · Mathematics 2009-01-12 Jeffrey Brown

In this paper, we explicitly prove that statistical manifolds, related to exponential families and with flat structure connection have a Frobenius manifold structure. This latter object, at the interplay of beautiful interactions between…

Algebraic Geometry · Mathematics 2021-07-20 Noemie Combe , Philippe Combe , Hanna Nencka

Motivated by mirror symmetry and the enumeration of holomorphic disks, we construct the theory of Gromov-Witten invariants in the setting of non-archimedean analytic geometry. We build on our previous works on derived non-archimedean…

Algebraic Geometry · Mathematics 2022-09-28 Mauro Porta , Tony Yue YU

We construct an integrable hierarchy in the form of Hirota quadratic equations (HQE) that governs the Gromov--Witten (GW) invariants of the Fano orbifold projective curve $\mathbb{P}^1_{a_1,a_2,a_3}$. The vertex operators in our…

Algebraic Geometry · Mathematics 2016-09-21 Todor Milanov , Yefeng Shen , Hsian-Hua Tseng

In light of recent attempts to extend the Cieliebak-Mohnke approach for constructing Gromov-Witten invariants to positive genera, we compare the absolute and relative Gromov-Witten invariants of compact symplectic manifolds when the…

Algebraic Geometry · Mathematics 2014-05-13 Mohammad F. Tehrani , Aleksey Zinger