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We compute the ring structure of Floer cohomology groups of Lagrangian torus fibers in some toric Fano manifolds continuing the study of \cite{CO}. Related $\AI$-formulas hold for transversal choice of chains. Two different computations are…

Symplectic Geometry · Mathematics 2016-09-07 Cheol-Hyun Cho

We use Lagrangian torus fibrations on the mirror $X$ of a toric Calabi-Yau threefold $\check X$ to construct Lagrangian sections and various Lagrangian spheres on $X$. We then propose an explicit correspondence between the sections and line…

Symplectic Geometry · Mathematics 2023-02-13 Mark Gross , Diego Matessi

The so-called quantization problem in geometric quantization is asking whether the space of wave functions is independent of the choice of polarization. In this paper, we apply SYZ transforms to solve the quantization problem in two cases:…

Symplectic Geometry · Mathematics 2020-05-26 Kwokwai Chan , Yat-Hin Suen

We construct a Lagrangian torus fibration on a smooth hypertoric variety and a corresponding SYZ mirror variety using $T$-duality and generating functions of open Gromov-Witten invariants. The variety is singular in general. We construct a…

Symplectic Geometry · Mathematics 2019-09-04 Siu-Cheong Lau , Xiao Zheng

This paper focuses on a topological version on the Strominger-Yau-Zaslow mirror symmetry conjecture. Roughly put, the SYZ conjecture suggests that mirror pairs of Calabi-Yau manifolds are related by the existence of dual special Lagrangian…

Algebraic Geometry · Mathematics 2007-05-23 Mark Gross

We construct pseudotoric structures (\`{a} la Tyurin) on the two-step flag variety $F\ell_{1, n-1; n}$, and explain a general relation between pseudotoric structures and special Lagrangian torus fibrations, the latter of which are important…

Symplectic Geometry · Mathematics 2019-11-01 Kwokwai Chan , Naichung Conan Leung , Changzheng Li

We discuss various topics on degenerations and special Lagrangian torus fibrations of Calabi-Yau manifolds in the context of mirror symmetry. A particular emphasis is on Tyurin degenerations and the Doran-Harder-Thompson conjecture, which…

Algebraic Geometry · Mathematics 2018-08-02 Atsushi Kanazawa

We construct Lagrangian sections of a Lagrangian torus fibration on a 3-dimensional conic bundle, which are SYZ dual to holomorphic line bundles over the mirror toric Calabi-Yau 3-fold. We then demonstrate a ring isomorphism between the…

Symplectic Geometry · Mathematics 2016-08-18 Kwokwai Chan , Daniel Pomerleano , Kazushi Ueda

Let $(X,\check{X})$ be a mirror pair of a complex torus $X$ and its mirror partner $\check{X}$. This mirror pair is described as the trivial special Lagrangian torus fibrations $X\rightarrow B$ and $\check{X}\rightarrow B$ on the same base…

Differential Geometry · Mathematics 2023-03-01 Kazushi Kobayashi

We study mirror symmetry of supermanifolds constructed as fermionic extensions of compact toric varieties. We mainly discuss the case where the linear sigma A-model contains as many fermionic fields as there are U(1) factors in the gauge…

High Energy Physics - Theory · Physics 2014-11-18 A. Belhaj , L. B. Drissi , J. Rasmussen , E. H. Saidi , A. Sebbar

SYZ mirror conjecture predicts that a Calabi-Yau manifold $X$ consists of a family of tori which are dual to a family of special lagrangian tori on the mirror dual manifold $\hat{X}$. Here we consider a fibration of polarized abelian…

Algebraic Geometry · Mathematics 2012-08-02 Cristina Martínez Ramírez

Gross and Siebert identified a class of singular Lagrangian torus fibrations which arise when smoothing toroidal degenerations, and which come in pairs that are related by mirror symmetry. We identify an immersed Lagrangian in each of these…

Symplectic Geometry · Mathematics 2021-07-13 Mohammed Abouzaid , Zachary Sylvan

We study the matrix factorization problem associated with an SO(2) spinning top by using the algebro-geometric approach. We derive the explicit expressions in terms of Riemann theta functions and discus some related problems including a…

Mathematical Physics · Physics 2007-05-23 Aleksandar Mikovic

In this note, we study the SYZ mirror construction for a toric Calabi-Yau manifold using instanton corrections coming from Woodward's quasimap Floer theory instead of Fukaya-Oh-Ohta-Ono's Lagrangian Floer theory. We show that the resulting…

Symplectic Geometry · Mathematics 2019-08-09 Kwokwai Chan

In the paper "Birational geometry via moduli spaces" by I. Cheltsov, L. Katzarkov, and V. Przyjalkowski a new structure connecting toric degenerations of smooth Fano threefolds by projections was introduced; using Mirror Symmetry these…

Algebraic Geometry · Mathematics 2019-04-05 Alexander Kasprzyk , Ludmil Katzarkov , Victor Przyjalkowski , Dmitrijs Sakovics

This is a short companion paper to arXiv:0810.3470. We construct an integrable system on an open subset of a Fano manifold equipped with a toric degeneration, and compute the potential function for its Lagrangian torus fibers if the central…

Symplectic Geometry · Mathematics 2010-02-28 Takeo Nishinou , Yuichi Nohara , Kazushi Ueda

For an in invertible quasihomogeneous singularity $w$ we prove an all-genus mirror theorem establishing an isomorphism between two cohomological field theories. On the $B$-side it is the Saito-Givental theory given by a certain choice of a…

Algebraic Geometry · Mathematics 2022-08-02 Weiqiang He , Alexander Polishchuk , Yefeng Shen , Arkady Vaintrob

Polishchuk-Zaslow explained the homological mirror symmetry between Fukaya category of symplectic torus and the derived category of coherent sheaves of elliptic curves via Lagrangian torus fibration. Recently, Cho-Hong-Lau found another…

Symplectic Geometry · Mathematics 2019-03-21 Sangwook Lee

We give a list of monodromy factorizations in the pure mapping class group $Mod(T_{d+1})$ of a torus with d+1 marked points that represent lines on a del Pezzo surface Y of degree $d\le4$. These factorizations are lifts of a certain fixed…

Algebraic Geometry · Mathematics 2025-04-01 Mohan Bhupal , Sergey Finashin

We prove a general form of the wall-crossing formula which relates the disk potentials of monotone Lagrangian submanifolds with their Floer-theoretic behavior away from a Donaldson divisor. We define geometric operations called mutations of…

Symplectic Geometry · Mathematics 2018-08-09 James Pascaleff , Dmitry Tonkonog