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Related papers: A Note on Disk Counting in Toric Orbifolds

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We study the curve counting invariants of Calabi--Yau 3-folds via the Weyl reflection along a ruled divisor. We obtain a new rationality result and functional equation for the generating functions of Pandharipande--Thomas invariants. When…

Algebraic Geometry · Mathematics 2022-03-31 Tim-Henrik Buelles , Miguel Moreira

We survey recent developments in the study of SYZ mirror symmetry for compact toric and toric Calabi-Yau varieties, with a special emphasis on works of the author and his collaborators.

Symplectic Geometry · Mathematics 2020-05-29 Kwokwai Chan

We calculate the integral equivariant cohomology, in terms of generators and relations, of locally standard torus orbifolds whose odd degree ordinary cohomology vanishes. We begin by studying GKM-orbifolds, which are more general, before…

Algebraic Topology · Mathematics 2020-12-04 Alastair Darby , Shintaro Kuroki , Jongbaek Song

Holomorphic disk invariants with boundary in the real Lagrangian of a quintic 3-fold are calculated by localization and proven mirror transforms. A careful discussion of the underlying virtual intersection theory is included. The generating…

Symplectic Geometry · Mathematics 2009-08-07 R. Pandharipande , J. Solomon , J. Walcher

We continue the mathematical development of the open/closed correspondence proposed by Mayr and Lerche-Mayr. Given an open geometry on a toric Calabi-Yau 3-orbifold $\mathcal{X}$ relative to a framed Aganagic-Vafa outer brane…

Algebraic Geometry · Mathematics 2025-07-09 Chiu-Chu Melissa Liu , Song Yu

In this paper, we extend our geometrical derivation of expansion coefficients of mirror maps by localization computation to the case of toric manifolds with two K\"ahler forms. Especially, we take Hirzebruch surfaces F_{0}, F_{3} and…

Algebraic Geometry · Mathematics 2013-09-09 Masao Jinzenji

We study the analytic torsion of odd-dimensional hyperbolic orbifolds $\Gamma \backslash \mathbb{H}^{2n+1}$, depending on a representation of $\Gamma$. Our main goal is to understand the asymptotic behavior of the analytic torsion with…

Spectral Theory · Mathematics 2015-11-20 Ksenia Fedosova

Let $Y$ be a smooth projective threefold and let $f:Y\to X$ be a birational map with $Rf_*\mathcal{O}_Y=\mathcal{O}_X$. When $Y$ is Calabi-Yau, Bryan-Steinberg defined enumerative invariants associated to such maps called $f$-relative…

Algebraic Geometry · Mathematics 2022-12-19 Tudor Pădurariu

Using the algebraic geometry method of Berenstein and Leigh (BL), hep-th/0009209 and hep-th/0105229), and considering singular toric varieties ${\cal V}_{d+1}$ with NC irrational torus fibration, we construct NC extensions ${\cal…

High Energy Physics - Theory · Physics 2009-11-07 Mohamed Bennai , El Hassan Saidi

In this paper we give concrete estimations for the pseudo symplectic capacities of toric manifolds in combinatorial data. Some examples are given to show that our estimates can compute their pseudo symplectic capacities. As applications we…

Symplectic Geometry · Mathematics 2007-05-23 Guangcun Lu

It is known that moduli spaces of Calabi-Yau (CY) manifolds are special K\"ahler manifolds. This structure determines the corresponding low-energy effective theory which arises in superstring compactifications on CY manifolds. In the case,…

High Energy Physics - Theory · Physics 2018-02-14 Konstantin Aleshkin , Alexander Belavin

Q-Gorenstein toric contact manifolds provide an interesting class of examples of contact manifolds with torsion first Chern class. They are completely determined by certain rational convex polytopes, called toric diagrams, and arise both as…

Symplectic Geometry · Mathematics 2023-06-16 Miguel Abreu , Leonardo Macarini , Miguel Moreira

We study Hilbert schemes of points on a smooth projective Calabi-Yau 4-fold $X$. We define $\mathrm{DT}_4$ invariants by integrating the Euler class of a tautological vector bundle $L^{[n]}$ against the virtual class. We conjecture a…

Algebraic Geometry · Mathematics 2018-12-05 Yalong Cao , Martijn Kool

In this article, we construct an orbifold quantum cohomology twisted by a flat gerbe. Then we compute these invariants in the case of a smooth manifold and a discrete torsion on a global quotient orbifold.

Algebraic Geometry · Mathematics 2007-05-23 Jianzhong Pan , Yongbin Ruan , Xiaoqin Yin

Let $X$ be a complex four-dimensional compact Calabi-Yau manifold equipped with a K\"ahler form $\omega$ and a holomorphic four-form $\Omega$. Under certain assumptions, we define Donaldson-Thomas type deformation invariants by studying the…

Algebraic Geometry · Mathematics 2013-09-18 Yalong Cao

Given a real Banach space $\mathcal{X}$ and probability space $(\Omega, \Sigma, \mu)$ we characterize the countable additivity of Henstock-Dunford integral for Henstock integrable function taking values in $X$ as those weakly measurable…

Functional Analysis · Mathematics 2019-12-03 Hemanta Kalita , Bipan Hazarika

This note shows that a certain toric quotient of the quintic Calabi-Yau threefold in projective four-space provides a counterexample to a recent conjecture of Cox and Katz concerning nef cones of toric hypersurfaces.

Algebraic Geometry · Mathematics 2007-05-23 Balazs Szendroi

In this note, we prove combinatorial formulas for $h^{2,1}$ of prime toric divisors in an arbitrary toric hypersurface Calabi-Yau fourfold $Y_4.$ We show that it is possible to find a toric hypersurface Calabi-Yau in which there are more…

High Energy Physics - Theory · Physics 2022-04-13 Manki Kim

The operational Chow cohomology classes of a complete toric variety are identified with certain functions, called Minkowski weights, on the corresponding fan. The natural product of Chow cohomology classes makes the Minkowski weights into a…

alg-geom · Mathematics 2008-02-03 William Fulton , Bernd Sturmfels

Using factorizable Hopf algebras, we construct modular invariant partition functions of charge conjugation, or Cardy, type as characters of coends in categories that share essential features with the ones appearing in logarithmic CFT. The…

High Energy Physics - Theory · Physics 2017-08-23 Jurgen Fuchs , Christoph Schweigert , Carl Stigner