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相关论文: Recent rigidity results for graphs with prescribed…

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In this paper, we prove a new gradient estimate for minimal graphs defined on domains of a complete manifold with Ricci curvature bounded from below. In particular, we show that positive, entire minimal graphs on manifolds with non-negative…

微分几何 · 数学 2024-01-17 Giulio Colombo , Marco Magliaro , Luciano Mari , Marco Rigoli

We obtain a gradient estimate for the Gauss maps from complete spacelike constant mean curvature hypersurfaces in Minkowski space into the hyperbolic space. As applications, we prove a Bernstein theorem which says that if the image of the…

dg-ga · 数学 2008-02-03 Huai-Dong Cao , Ying Shen , Shunhui Zhu

A rigidity theory is developed for the Euclidean and non-Euclidean placements of countably infinite simple graphs in R^d with respect to the classical l^p norms, for d>1 and 1<p<\infty. Generalisations are obtained for the Laman and…

度量几何 · 数学 2013-10-08 D. Kitson , S. C. Power

We study the prescribed mean curvature equation for $t$-graphs in a Riemannian Heisenberg group of arbitrary dimension. We characterize the existence of classical solutions in a bounded domain without imposing Dirichlet boundary data, and…

微分几何 · 数学 2024-05-13 Julián Pozuelo , Simone Verzellesi

We prove local and global upper estimates for the infimum of the mean curvature, the scalar curvature and the norm of the shape operator of graphs in a warped product space. Using these estimates, we obtain some results on pseudo-hyperbolic…

微分几何 · 数学 2020-11-05 Alexandre Paiva Barreto , Fabiani A. Coswosck , Luiz Hartmann

We prove the rigidity of rectifiable boundaries with constant distributional mean curvature in the Brendle class of warped product manifolds (which includes important models in General Relativity, like the deSitter--Schwarzschild and…

微分几何 · 数学 2025-08-14 Francesco Maggi , Mario Santilli

In this paper, we obtain an Ecker-Huisken type result for entire graphs with parallel mean curvature.

微分几何 · 数学 2009-11-13 Yuxin Dong

In this paper we extend to non-compact Riemannian manifolds with boundary the use of two important tools in the geometric analysis of compact spaces, namely, the weak maximum principle for subharmonic functions and the integration by parts.…

微分几何 · 数学 2013-04-10 Debora Impera , Stefano Pigola , Alberto G. Setti

The radial limits at a point ${\bf y}$ of the boundary of the domain $\Omega\subset {\bf R}^{2}$ of a bounded variational solution $f$ of Dirichlet or contact angle boundary value problems for a prescribed mean curvature equation are…

偏微分方程分析 · 数学 2018-08-28 Mozhgan Entekhabi , Kirk E. Lancaster

The all-terminal reliability of a graph $G$ is the probability that $G$ remains connected when each edge fails independently with probability $p$. For fixed $n$ and $m$, the uniformly most reliable problem asks which graph with $n$ vertices…

组合数学 · 数学 2026-03-03 Rotem Brand , Reuven Cohen , Simi Haber , Baruch Barzel

We investigate the geometric implications of spectral curvature bounds, extending classical rigidity results in scalar curvature geometry to the spectral setting. By systematically employing the warped $\mu$-bubble method, we show…

微分几何 · 数学 2026-04-07 Xiaoxiang Chai , Yukai Sun

There are many non-trivial entire spacelike graphs with constant mean curvature $H$ (CMC $H$, for short) in the isotropic 3-space $\mathbb{I}^3$. In this paper, we show a value distribution theorem of Gaussian curvature of complete…

微分几何 · 数学 2025-06-02 Shintaro Akamine , Wonjoo Lee , Seong-Deog Yang

We prove the existence and uniqueness of radial graphs over a given domain of $\mathbb{S}^{n}$ having boundary on the sphere $\mathbb{S}^{n}$ and whose mean curvature at every point equals a prescribed positive function satisfying suitable…

微分几何 · 数学 2012-09-10 Paolo Caldiroli , Giovanni Gullino

Let (M, g) be a compact Einstein Riemannian manifold with boundary. We show that under certain conditions, the map that associates to a metric on M its Ricci curvature, its induced conformal class on the boundary, and its mean curvature on…

微分几何 · 数学 2025-03-25 Erwann Delay

For undirected graphs, the Ricci curvature introduced by Lin-Lu-Yau has been widely studied from various perspectives, especially geometric analysis. In the present paper, we discuss generalization problem of their Ricci curvature for…

微分几何 · 数学 2020-07-07 Ryunosuke Ozawa , Yohei Sakurai , Taiki Yamada

Given an unbounded domain $\Omega$ of a Hadamard manifold $M$, it makes sense to consider the problem of finding minimal graphs with prescribed continuous data on its cone-topology-boundary, i.e., on its ordinary boundary together with its…

微分几何 · 数学 2016-02-17 Miriam Telichevesky

Let $M$ be a graph manifold such that each piece of its JSJ decomposition has the $\Bbb H^2 \times \Bbb R$ geometry. Assume that the pieces are glued by isometries. Then, there exists a complete Riemannian metric on $\Bbb R \times M$ which…

微分几何 · 数学 2020-11-18 Koji Fujiwara , Takashi Shioya

We consider graphs Sigma^n in R^m with prescribed mean curvature and flat normal bundle. Using techniques of Schoen, Simon and Yau, and Ecker-Huisken, we derive an interior curvature estimate of the form |A|^2<=C/R^2 up to dimension n<=5,…

偏微分方程分析 · 数学 2007-05-23 Steffen Froehlich , Sven Winklmann

We study minimal graphs with linear growth on complete manifolds $M^m$ with $\mathrm{Ric} \ge 0$. Under the further assumption that the $(m-2)$-th Ricci curvature in radial direction is bounded below by $C r(x)^{-2}$, we prove that any such…

微分几何 · 数学 2024-08-28 Giulio Colombo , Eddygledson Souza Gama , Luciano Mari , Marco Rigoli

We prove splitting theorems for mean convex open subsets in RCD (Riemannian curvature-dimension) spaces that extend results by Kasue, Croke and Kleiner for Riemannian manifolds with boundary to a non-smooth setting. A corollary is for…

微分几何 · 数学 2023-01-30 Christian Ketterer