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We identify the twisted sectors of a compact simplicial toric variety. We do the same for a generic nondegenerate Calabi-Yau hypersurface of an $n$-dimensional simplicial Fano toric variety and then explicitly compute $h^{1,1}_{orb}$ and…

Algebraic Geometry · Mathematics 2007-05-23 Mainak Poddar

We develop the theory of orbibundles from a geometrical viewpoint using diffeology. One of our goals is to present new tools allowing to calculate invariants of complex hyperbolic disc orbibundles over $2$-orbifolds appearing in the…

Geometric Topology · Mathematics 2023-08-01 Hugo Cattarucci Botós

Topologically, compact toric varieties can be constructed as identification spaces: they are quotients of the product of a compact torus and the order complex of the fan. We give a detailed proof of this fact, extend it to the non-compact…

Algebraic Topology · Mathematics 2010-10-25 Matthias Franz

We review three methods of counting abelian orbifolds of the form C^3/Gamma which are toric Calabi-Yau (CY). The methods include the use of 3-tuples to define the action of Gamma on C^3, the counting of triangular toric diagrams and the…

High Energy Physics - Theory · Physics 2011-07-14 John Davey , Amihay Hanany , Rak-Kyeong Seong

We compute the integral homology (including torsion), the topological K-theory, and the Hodge structure on cohomology of Calabi-Yau threefold hypersurfaces and complete intersections in Gorenstein toric Fano varieties. The methods are…

Algebraic Geometry · Mathematics 2014-11-11 Charles F. Doran , John W. Morgan

We study various geometrical quantities for Calabi-Yau varieties realized as cones over Gorenstein Fano varieties, obtained as toric varieties from reflexive polytopes in various dimensions. Focus is made on reflexive polytopes up to…

High Energy Physics - Theory · Physics 2018-04-04 Yang-Hui He , Rak-Kyeong Seong , Shing-Tung Yau

We prove an open version of Ruan's Crepant Transformation Conjecture for toric Calabi-Yau 3-orbifolds, which is an identification of disk invariants of K-equivalent semi-projective toric Calabi-Yau 3-orbifolds relative to corresponding…

Algebraic Geometry · Mathematics 2025-05-14 Song Yu

We prove that the inverse of a mirror map for a toric Calabi-Yau manifold of the form $K_Y$, where $Y$ is a compact toric Fano manifold, can be expressed in terms of generating functions of genus 0 open Gromov-Witten invariants defined by…

Symplectic Geometry · Mathematics 2014-02-19 Kwokwai Chan , Siu-Cheong Lau , Hsian-Hua Tseng

We study the equivariant disc potentials for immersed SYZ fibers in toric Calabi-Yau manifolds. The immersed Lagrangians play a crucial role in the partial compactification of the SYZ mirrors. Morever, their equivariant disc potentials have…

Symplectic Geometry · Mathematics 2020-04-17 Hansol Hong , Yoosik Kim , Siu-Cheong Lau , Xiao Zheng

In this note, we describe a a systematic procedure to find toric crepant resolutions of orbifold vertex, and show that the generating series of certain disc invariants of the orbifold vertex can be suitably identified with the generating…

Mathematical Physics · Physics 2014-10-17 Hua-Zhong Ke , Jian Zhou

We announce a result on quantum McKay correspondence for disc invariants of outer legs in toric Calabi-Yau 3-orbifolds, and illustrate our method in a special example $[\mathbb C^3 /\mathbb Z_5 (1, 1, 3)]$.

Mathematical Physics · Physics 2014-10-17 Hua-Zhong Ke , Jian Zhou

Using the algebraic geometric approach of Berenstein et {\it al} (hep-th/005087 and hep-th/009209) and methods of toric geometry, we study non commutative (NC) orbifolds of Calabi-Yau hypersurfaces in toric varieties with discrete torsion.…

High Energy Physics - Theory · Physics 2009-11-07 A. Belhaj , E. H. Saidi

We extend the known classification of threefolds of general type that are complete intersections to various classes of non-complete intersections, and find other classes of polarised varieties, including Calabi-Yau threefolds with canonical…

Algebraic Geometry · Mathematics 2022-10-28 Gavin Brown , Alexander Kasprzyk , Lei Zhu

We present new examples of affine Calabi--Yau manifolds of Euclidean volume growth and quadratic curvature decay, whose tangent cones at infinity are irregular and have smooth links. In the process, we demonstrate (and provide the relevant…

Differential Geometry · Mathematics 2025-06-18 Ronan J. Conlon , Tran-Trung Nghiem

We demonstrate a practical and efficient method for generating toric Calabi-Yau quiver theories, applicable to both D3 and M2 brane world-volume physics. A new analytic method is presented at low order parametres and an algorithm for the…

High Energy Physics - Theory · Physics 2014-11-20 Joseph Hewlett , Yang-Hui He

We investigate topological properties of Calabi-Yau fourfolds and consider a wide class of explicit constructions in weighted projective spaces and, more generally, toric varieties. Divisors which lead to a non-perturbative superpotential…

High Energy Physics - Theory · Physics 2010-04-06 A. Klemm , B. Lian , S. -S. Roan , S. -T. Yau

The theory of coverings of the two-dimensional torus is a standard part of algebraic topology and has applications in several topics in string theory, for example, in topological strings. This paper initiates applications of this theory to…

High Energy Physics - Theory · Physics 2015-03-19 Amihay Hanany , Vishnu Jejjala , Sanjaye Ramgoolam , Rak-Kyeong Seong

We develop Floer theory of Lagrangian torus fibers in compact symplectic toric orbifolds. We first classify holomorphic orbi-discs with boundary on Lagrangian torus fibers. We show that there exists a class of basic discs such that we have…

Symplectic Geometry · Mathematics 2014-08-01 Cheol-Hyun Cho , Mainak Poddar

We compute the disk potential of Gelfand--Zeitlin monotone torus fiber in a quadric hypersurface by exploiting toric degenerations, Lie theoretical mirror symmetry, and the structural result of the monotone Fukaya category.

Symplectic Geometry · Mathematics 2023-02-22 Yoosik Kim

We provide an enumerative meaning of the mirror maps for toric Calabi-Yau orbifolds in terms of relative Gromov-Witten invariants of the toric compactifications. As a consequence, we obtain an equality between relative Gromov-Witten…

Algebraic Geometry · Mathematics 2020-05-12 Fenglong You
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