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相关论文: Mean value surfaces with prescribed curvature form

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Let $(M, g)$ be a compact Riemannian manifold with boundary $\partial M$. Given a function $f$ on $\partial M$, we consider the problem of finding a conformal metric of $g$ with zero scalar curvature in $M$ and prescribed mean curvature $f$…

微分几何 · 数学 2026-05-26 Jiashu Shen , Hongyi Sheng

Let $M$ be a compact Riemannian manifold not containing any totally geodesic surface. Our main result shows that then the area of any complete surface immersed into $M$ is bounded by a multiple of its extrinsic curvature energy, i.e. by a…

微分几何 · 数学 2025-02-03 Victor Bangert , Ernst Kuwert

In this paper, we can prove the existence and uniqueness of solutions to the constant mean curvature (CMC for short) equation with nonzero Neumann boundary data in product manifold $M^{n}\times\mathbb{R}$, where $M^{n}$ is an…

微分几何 · 数学 2020-02-03 Ya Gao , Jing Mao , Chun-Lan Song

The geometric Cauchy problem for a class of surfaces in a pseudo-Riemannian manifold of dimension 3 is to find the surface which contains a given curve with a prescribed tangent bundle along the curve. We consider this problem for constant…

微分几何 · 数学 2013-03-15 David Brander , Martin Svensson

In this note, we study the prescribed mean curvature equation with Neumann boundary conditions on Riemannian product manifold $ M^n\times \mathbb{R}$. The main goal is to establish the boundary gradient estimates for solutions by the…

微分几何 · 数学 2016-06-22 Jinju Xu , Dekai Zhang

The total mean curvature functional for submanifolds into the Riemannian product space $\mathbb{S}^n\times\mathbb{R}$ is considered and its first variational formula is presented. Later on, two second order differential operators are…

微分几何 · 数学 2024-02-08 Alma L. Albujer , Sylvia F. da Silva , Fábio R. dos Santos

In this paper, we propose a generalization of the Riemann curvature tensor on manifolds (of dimension two or higher) endowed with a Regge metric. Specifically, while all components of the metric tensor are assumed to be smooth within…

数值分析 · 数学 2026-01-12 Jay Gopalakrishnan , Michael Neunteufel , Joachim Schöberl , Max Wardetzky

For a submanifold with flat normal bundle in a space form there is a normal orthonormal basis that simultaneously diagonalizes the corresponding Weingarten operators, and at which these operators satisfy a simple Codazzi symmetry. When the…

微分几何 · 数学 2022-10-04 Javier Álvarez-Vizoso

In this paper, we investigate a class of quadratic Riemannian curvature functionals on closed smooth manifold $M$ of dimension $n\ge 3$ on the space of Riemannian metrics on $M$ with unit volume. We study the stability of these functionals…

微分几何 · 数学 2018-01-09 Weimin Sheng , Lisheng Wang

We obtain an explicit formula for comparing total curvature of level sets of functions on Riemannian manifolds, and develop some applications of this result to the isoperimetric problem in spaces of nonpositive curvature.

微分几何 · 数学 2021-09-24 Mohammad Ghomi , Joel Spruck

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

Seiberg-Witten theory leads to a delicate interplay between Riemannian geometry and smooth topology in dimension four. In particular, the scalar curvature of any metric must satisfy certain non-trivial estimates if the manifold in question…

微分几何 · 数学 2016-09-07 Claude LeBrun

In the first part of this paper we prove some new Poincar\'e inequalities, with explicit constants, for domains of any hypersurface of a Riemannian manifold with sectional curvatures bounded from above. This inequalities involve the first…

微分几何 · 数学 2017-08-30 Hilário Alencar , Gregório Silva Neto

The space of all Riemannian metrics on a smooth second countable finite dimensional manifold is itself a smooth manifold modeled on the space of symmetric (0,2)-tensor fields with compact support. It carries a canonical Riemannian metric…

微分几何 · 数学 2008-02-03 Olga Gil-Medrano , Peter W. Michor

In a previous work, we studied isoparametric functions on Riemannian manifolds, especially on exotic spheres. One result there says that, in the family of isoparametric hypersurfaces of a closed Riemannian manifold, there exist at least one…

微分几何 · 数学 2012-10-10 Jianquan Ge , Zizhou Tang

Gravity is a phenomenon which arises due to the space-time geometry. The main equations that describe gravity are the Einstein equations. To understand the consequences of these field equations we need to calculate the free particle…

微分几何 · 数学 2023-08-01 Adrian Boitier , Shubhanshu Tiwari

We consider prescribed mean curvature equations whose solutions are minimal surfaces, constant mean curvature surfaces, or capillary surfaces. We consider both Dirichlet boundary conditions for Plateau problems and nonlinear Neumann…

数值分析 · 数学 2024-06-11 Jonas Haug , Rachel Jewell , Ray Treinen

A Riemannian metric is called Hessian if, locally, it can be written as the Hessian of a function called the Hessian potential. A (flat) Manin-Frobenius manifold is a flat Riemannian manifold furnished with a commutative and associative…

微分几何 · 数学 2025-12-02 Andreas Vollmer

We consider the inverse problem of determining the metric-measure structure of collapsing manifolds from local measurements of spectral data. In the part I of the paper, we proved the uniqueness of the inverse problem and a continuity…

偏微分方程分析 · 数学 2024-04-26 Matti Lassas , Jinpeng Lu , Takao Yamaguchi

A Riemannian metric is termed a Hessian metric if in some coordinate system it can be locally represented as the Hessian quadratic form of some locally defined smooth potential function. Under very mild extra technical conditions, we first…

微分几何 · 数学 2025-12-18 Hanwen Liu