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Related papers: Calabi--Yau threefolds in $\mathbb{P}^6$

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In this article, we construct complete Calabi-Yau metrics on abelian fibrations $X$ over $\mathbb{C}$. We also provide compactification for $X$ so that the compactified variety has negative canonical bundle.

Differential Geometry · Mathematics 2025-06-17 Ruiming Liang , Yang Zhang

This paper first generalises the Bogomolov-Tian-Todorov unobstructedness theorem to the case of Calabi-Yau threefolds with canonical singularities. The deformation space of such a Calabi-Yau threefold is no longer smooth, but the general…

alg-geom · Mathematics 2025-10-10 Mark Gross

Five dimensional field theories with exceptional gauge groups are engineered from degenerations of Calabi-Yau threefolds. The structure of the Coulomb branch is analyzed in terms of relative K\"ahler cones. For low number of flavors, the…

High Energy Physics - Theory · Physics 2009-10-31 Duiliu-Emanuel Diaconescu , Rami Entin

We construct singular quartic double fivefolds whose Kuznetsov component admits a crepant categorical resolution of singularities by a twisted Calabi--Yau threefold. We also construct rational specializations of these fivefolds where such a…

Algebraic Geometry · Mathematics 2026-03-10 Raymond Cheng , Alexander Perry , Xiaolei Zhao

The moduli space of the Calabi-Yau three-folds, which play a role as superstring ground states, exhibits the same {\em special geometry} that is known from nonlinear sigma models in $N=2$ supergravity theories. We discuss the symmetry…

High Energy Physics - Theory · Physics 2010-11-01 B. de Wit , A. Van Proeyen

We construct Calabi-Yau threefolds defined over $\mathbb{Q}$ via quotients of abelian threefolds, and re-verify the rigid Calabi-Yau threefolds in this construction are modular by computing their L-series, without \cite{Dieulefait} or…

Number Theory · Mathematics 2015-06-15 Alexander Molnar

We study Calabi-Yau manifolds constructed as double covers of ${\mathbb P}^3$ branched along an octic surface. We give a list of 85 examples corresponding to arrangements of eight planes defined over ${\mathbb Q}$. The Hodge numbers are…

Algebraic Geometry · Mathematics 2009-12-15 S. Cynk , C. Meyer

We prove an orbifold Riemann--Roch formula for a polarized 3--fold (X,D). As an application, we construct new families of projective Calabi--Yau threefolds.

Algebraic Geometry · Mathematics 2016-08-16 Anita Buckley , Balázs Szendrői

Let $B$ be a smooth projective surface, and $\mathcal{L}$ an ample line bundle on $B$. The aim of this parer is to study the families of elliptic Calabi--Yau threefolds sitting in the bundle $\mathbb{P}(\mathcal{L}^a \oplus \mathcal{L}^b…

Algebraic Geometry · Mathematics 2018-06-14 Andrea Cattaneo

In this paper, we study the Chern classes on the moduli space of polarized Calabi-Yau manifolds. We prove that the integrations of the invariants of the curvature of the Weil-Petersson metric are finite. In some special cases, they are even…

Differential Geometry · Mathematics 2007-05-23 Michael Douglas , Zhiqin Lu

We introduce and we study a class of odd dimensional compact complex manifolds whose Hodge structure in middle dimension looks like that of a Calabi-Yau threefold. We construct several series of interesting examples from rational…

Algebraic Geometry · Mathematics 2011-02-18 Atanas Iliev , Laurent Manivel

We extend our variant of mirror symmetry for K3 surfaces \cite{GN3} and clarify its relation with mirror symmetry for Calabi-Yau manifolds. We introduce two classes (for the models A and B) of Calabi-Yau manifolds fibrated by K3 surfaces…

alg-geom · Mathematics 2014-10-13 Valeri A. Gritsenko , Viacheslav V. Nikulin

In this paper, we investigate the space of certain weak stability conditions on the triangulated category of D0-D2-D6 bound states on a smooth projective Calabi-Yau 3-fold. In the case of a quintic 3-fold, the resulting space is interpreted…

Algebraic Geometry · Mathematics 2010-07-28 Yukinobu Toda

Gromov-Witten theory is used to define an enumerative geometry of curves in Calabi-Yau 5-folds. We find recursions for meeting numbers of genus 0 curves, and we determine the contributions of moving multiple covers of genus 0 curves to the…

Algebraic Geometry · Mathematics 2008-02-13 R. Pandharipande , A. Zinger

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

In this paper we discuss recent progress on the modularity of Calabi-Yau varieties. We focus mostly on the case of surfaces and threefolds. We will also discuss some progress on the structure of the L-function in connection with mirror…

Algebraic Geometry · Mathematics 2007-05-23 Klaus Hulek , Remke Kloosterman , Matthias Schuett

With a bird's-eye view, we survey the landscape of Calabi-Yau threefolds, compact and non-compact, smooth and singular. Emphasis will be placed on the algorithms and databases which have been established over the years, and how they have…

High Energy Physics - Theory · Physics 2013-08-20 Yang-Hui He

We give infinitely many new isomorphisms between moduli spaces of bundles on local surfaces and on local Calabi--Yau threefolds.

Algebraic Geometry · Mathematics 2021-08-06 Carlos Casorrán Amilburu , Severin Barmeier , Brian Callander , Elizabeth Gasparim

We briefly review the formal picture in which a Calabi-Yau $n$-fold is the complex analogue of an oriented real $n$-manifold, and a Fano with a fixed smooth anticanonical divisor is the analogue of a manifold with boundary, motivating a…

Algebraic Geometry · Mathematics 2007-05-23 R. P. Thomas

We describe birational models and decide the rationality/unirationality of moduli spaces AA_{d} (and AA^{lev}_{d}) of (1,d)-polarized abelian surfaces (with canonical level structure, respectively) for small values of d. The projective…

Algebraic Geometry · Mathematics 2007-05-23 Mark Gross , Sorin Popescu