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We prove an expansion theorem on scalar-flat asymptotically conical K\"ahler metrics. Consider an AC K\"ahler manifold with asymptotic to a Ricci-flat K\"ahler metric cone with complex dimension n. Assuming the weak decay conditions…

微分几何 · 数学 2022-06-15 Qi Yao

Using an ansatz due to LeBrun we construct complete scalar-flat K\"ahler metrics with a prescribed varying conical singularity along a divisor.

微分几何 · 数学 2024-01-01 Gonçalo Oliveira , Rosa Sena-Dias

We give an alternative proof of the Schoen--Simon--Yau curvature estimates and associated Bernstein-type theorems (1975), and extend the original result by including the case of $6$-dimensional (stable minimal) immersions. The key step is…

偏微分方程分析 · 数学 2025-09-15 Costante Bellettini

Inspired by a recent work of D. Wei--S. Zhu on the extension of closed complex differential forms and Voisin's usage of the $\partial\bar{\partial}$-lemma, we obtain several new theorems of deformation invariance of Hodge numbers and…

复变函数 · 数学 2025-09-26 Sheng Rao , Runze Zhang

The support measures of a convex body are a common generalization of the curvature measures and the area measures. With respect to the Hausdorff metric on the space of convex bodies, they are weakly continuous. We provide a quantitative…

度量几何 · 数学 2015-01-27 Daniel Hug , Rolf Schneider

We prove the following result: if a $\mathbb{Q}$-Fano variety is uniformly K-stable, then it admits a K\"{a}hler-Einstein metric. We achieve this by modifying Berman-Boucksom-Jonsson's strategy with appropriate perturbative arguments and…

微分几何 · 数学 2021-03-30 Chi Li , Gang Tian , Feng Wang

We construct a family of K\"ahler-Einstein edge metrics on all Hirzebruch surfaces using the Calabi ansatz and study their angle deformation. This allows us to verify in some special cases a conjecture of Cheltsov-Rubinstein that predicts…

微分几何 · 数学 2021-02-26 Yanir A. Rubinstein , Kewei Zhang

We study deformations of the Almheiri-Polchinski (AP) model by employing the Yang-Baxter deformation technique. The general deformed AdS$_2$ metric becomes a solution of a deformed AP model. In particular, the dilaton potential is deformed…

高能物理 - 理论 · 物理学 2017-04-26 Hideki Kyono , Suguru Okumura , Kentaroh Yoshida

In this paper, we generalize several results for the Hamiltonian stability and the mean curvature flow of Lagrangian submanifolds in a K\"ahler-Einstein manifold to more general K\"ahler manifolds including a Fano manifold equipped with a…

微分几何 · 数学 2018-04-04 Toru Kajigaya , Keita Kunikawa

We show the existence of complete negative K\"ahler-Einstein metric on Stein manifolds with negatively pinched holomorphic sectional curvature. We prove that any K\"ahler metrics on such manifolds can be deformed to the complete negative…

微分几何 · 数学 2019-10-08 Man-Chun Lee

In this paper, we proved the openness at t =0 of the new continuity path recently introduced by X. Chen.

微分几何 · 数学 2015-07-23 Yu Zeng

We introduce a notion of a K\"ahler metric with constant weighted scalar curvature on a compact K\"ahler manifold $X$, depending on a fixed real torus $\mathbb{T}$ in the reduced group of automorphisms of $X$, and two smooth (weight)…

微分几何 · 数学 2020-01-15 Abdellah Lahdili

We consider a mean curvature flow in a cone, that is, a hypersurface in a cone which moves toward the opening with normal velocity equaling to the mean curvature, and the contact angle between the hypersurface and the cone boundary being…

微分几何 · 数学 2019-07-29 Bendong Lou

The purpose of this paper is to prove the a priori estimates for constant scalar curvature Kaehler metrics with conic singularities along normal crossing divisors. The zero order estimates are proved by a reformulated version of…

微分几何 · 数学 2023-01-24 Long Li , Jian Wang , Kai Zheng

In this paper Quantum Mechanics with Fundamental Length is chosen as Quantum Mechanics at Planck's scale. This is possible due to the presence in the theory of General Uncertainty Relations. Here Quantum Mechanics with Fundamental Length is…

广义相对论与量子宇宙学 · 物理学 2009-11-10 A. E. Shalyt-Margolin , J. G. Suarez

Let $X$ be a complex projective manifold and let $D\subset X$ be a smooth divisor. In this article, we are interested in studying limits when $\beta\to 0$ of K\"ahler-Einstein metrics $\omega_\beta$ with a cone singularity of angle $2\pi…

微分几何 · 数学 2022-11-23 Olivier Biquard , Henri Guenancia

The paper studies an Allen-Cahn-type equation defined on a time-dependent surface as a model of phase separation with order-disorder transition in a thin material layer. By a formal inner-outer expansion, it is shown that the limiting…

数值分析 · 数学 2021-05-27 Maxim Olshanskii , Xianmin Xu , Vladimir Yushutin

Bounds consistency is usually enforced on continuous constraints by first decomposing them into binary and ternary primitives. This decomposition has long been shown to drastically slow down the computation of solutions. To tackle this,…

人工智能 · 计算机科学 2007-05-23 Frederic Goualard , Laurent Granvilliers

A flow vessel with an elastic wall can deform significantly due to viscous fluid flow within it, even at vanishing Reynolds number (no fluid inertia). Deformation leads to an enhancement of throughput due to the change in cross-sectional…

流体动力学 · 物理学 2021-02-10 Vishal Anand , Ivan C. Christov

The goal of this short note is to point out that every Fano manifold with a nef tangent bundle possesses an almost K{\"a}hler-Einstein metric, in a weak sense. The technique relies on a regularization theorem for closed positive (1,…

复变函数 · 数学 2018-02-07 Jean-Pierre Demailly