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Refining Yau's and Kolodziej's techniques, we establish very precise uniform a priori estimates for degenerate complex Monge-Amp\`ere equations on compact K\"ahler manifolds, that allow us to control the blow up of the solutions as the…

Complex Variables · Mathematics 2026-02-06 Eleonora Di Nezza , Vincent Guedj , Henri Guenancia

We prove the existence of a continuous quasi-plurisubharmonic solution to the Monge-Amp\`ere equation on a compact Hermitian manifold for a very general measre on the right hand side. We admit measures dominated by capacity in a certain…

Complex Variables · Mathematics 2020-03-12 Slawomir Kolodziej , Ngoc Cuong Nguyen

Motivated from mathematical aspects of the superstring theory, we introduce a new equation on a balanced, hermitian manifold, with zero first Chern class. Solving the equation, one will obtain, in each Bott--Chern cohomology class, a…

Differential Geometry · Mathematics 2010-10-15 Jixiang Fu , Zhizhang Wang , Damin Wu

We prove the long-time existence and convergence of solutions to a general class of parabolic equations, not necessarily concave in the Hessian of the unknown function, on a compact Hermitian manifold. The limiting function is identified as…

Analysis of PDEs · Mathematics 2020-06-18 Kevin Smith

In the studies on the modularity conjecture for rigid Calabi-Yau threefolds several examples with the unique level 8 cusp form were constructed. According to the Tate Conjecture correspondences inducing isomorphisms on the middle…

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

We propose the study of a Monge-Amp\`ere-type equation in bidegree $(n-1,\,n-1)$ rather than $(1,\,1)$ on a compact complex manifold $X$ of dimension $n$ for which we prove uniqueness of the solution subject to positivity and normalisation…

Differential Geometry · Mathematics 2015-05-14 Dan Popovici

We study the quaternionic Calabi-Yau problem in HKT geometry introduced by Alesker and Verbitsky on 8-dimensional 2-step nilmanifolds with an abelian hypercomplex structure. We show that the quaternionic Monge-Amp\`ere equation on these…

Differential Geometry · Mathematics 2021-01-07 Giovanni Gentili , Luigi Vezzoni

We study complex geodesics and complex Monge-Amp\`{e}re equations on bounded strongly linearly convex domains in $\mathbb C^n$. More specifically, we prove the uniqueness of complex geodesics with prescribed boundary value and direction in…

Complex Variables · Mathematics 2020-11-06 Xiaojun Huang , Xieping Wang

The main result asserts the existence of continuous solutions of the complex Monge-Amp\`ere equation with the right hand side in $L^p, p>1$, on compact Hermitian manifolds.

Differential Geometry · Mathematics 2015-11-23 Slawomir Kolodziej , Nguyen Ngoc Cuong

In this paper we introduce a new equation on the compact Kahler manifolds. Solution of this equation corresponds to the Calabi-Yau metric. New equation differs from the Monge--Ampere equation considered by Calabi and Yau.

Differential Geometry · Mathematics 2012-03-14 Dmitry Egorov

These are introductory lecture notes on complex geometry, Calabi-Yau manifolds and toric geometry. We first define basic concepts of complex and Kahler geometry. We then proceed with an analysis of various definitions of Calabi-Yau…

High Energy Physics - Theory · Physics 2007-05-23 Vincent Bouchard

Given a compact complex manifold $X$, we study the existence and the uniqueness of weak solutions to degenerate Monge-Amp\`ere equations on $X$ with prescribed singularities when the reference form is semipositive and big, while the right…

Complex Variables · Mathematics 2025-11-05 Omar Alehyane , Chinh H. Lu , Mohammed Salouf

The moduli space of multiply-connected Calabi-Yau threefolds is shown to contain codimension-one loci on which the corresponding variety develops a certain type of hyperquotient singularity. These have local descriptions as discrete…

High Energy Physics - Theory · Physics 2011-06-28 Rhys Davies

We give a sufficient condition on a sequence of uniformly bounded $\omega$-plurisubharmonic functions, $\omega$ being a Hermitian metric, for which the sequence of associated Monge-Amp\`ere measures converges weakly. This criterion can be…

Complex Variables · Mathematics 2022-12-23 Slawomir Kolodziej , Ngoc Cuong Nguyen

We study one parameter degenerations of complex projective manifolds by introducing certain type of Hodge metrics coming from the pluricanonical forms. We show that degenerations with at most canonical singularities are all in the finite…

Algebraic Geometry · Mathematics 2011-10-11 Chin-Lung Wang

This paper presents the current status on modularity of Calabi-Yau varieties since the last update in 2003. We will focus on Calabi-Yau varieties of dimension at most three. Here modularity refers to at least two different types: arithmetic…

Number Theory · Mathematics 2012-12-19 Noriko Yui

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

Calabi-Yau manifolds have played a key role in both mathematics and physics, and are particularly important for deriving realistic models of particle physics from string theory. Unfortunately, very little is known about the explicit metrics…

High Energy Physics - Theory · Physics 2022-02-15 Anthony Ashmore

In these lecture notes, we survey the landscape of Calabi-Yau threefolds, and the use of machine learning to explore it. We begin with the compact portion of the landscape, focusing in particular on complete intersection Calabi-Yau…

High Energy Physics - Theory · Physics 2020-02-05 Jiakang Bao , Yang-Hui He , Edward Hirst , Stephen Pietromonaco

In this paper, we establish second order estimates for a general class of fully nonlinear equations with linear gradient terms on compact almost Hermitian manifolds. As an application, we first prove the existence of solutions for the…

Analysis of PDEs · Mathematics 2022-12-05 Liding Huang , Jiaogen Zhang