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In this paper, we give the geometric meaning of hypersurfaces with constant mean curvature in a Finsler manifold by using volume preserving variation. Then we give the correspondence between principal curvatures of submanifolds by a…

微分几何 · 数学 2024-03-14 Yali Chen , Qun He , Yantong Qian

It is known that principal orbits of Hermann actions on a symmetric space of non-compact type are curvature-adapted isoparametric submanifolds having no focal point of non-Euclidean type on the ideal boundary of the ambient symmetric space.…

微分几何 · 数学 2014-07-08 Naoyuki Koike

In the paper two important theorems about complete affine spheres are generalized to the case of statistical structures on abstract manifolds. The assumption about constant sectional curvature is replaced by the assumption that the…

微分几何 · 数学 2018-05-22 Barbara Opozda

We obtain sharp estimates involving the mean curvatures of higher order of a complete bounded hypersurface immersed in a complete Riemannian manifold. Similar results are also given for complete spacelike hypersurfaces in Lorentzian ambient…

微分几何 · 数学 2013-01-17 L. J. Alias , M. Dajczer , M. Rigoli

We introduce a new curvature condition for high-codimension submanifolds of a Riemannian ambient space, called quasi-parallel mean curvature (QPMC). The class of submanifolds with QPMC includes all CMC hypersurfaces and submanifolds with…

微分几何 · 数学 2024-11-22 Jean Lagacé , Stephen Lynch

In this paper, studying the inverse problem, we establish a curvature compatibility condition on a spherically symmetric Finsler metric. As an application, we characterize the spherically symmetric metrics of scalar curvature. We construct…

微分几何 · 数学 2024-07-08 S. G. Elgendi

We investigate the problem of finding smooth hypersurfaces of constant mean curvature in hyperbolic space, which can be represented as radial graphs over a subdomain of the upper hemisphere. Our approach is variational and our main results…

偏微分方程分析 · 数学 2007-09-24 D. De Silva , J. Spruck

We prove a semi-global result on the existence of conformal embeddings of the two-sphere into the round three-sphere S^3(1) with prescribed mean curvature.

微分几何 · 数学 2012-04-26 Michael T. Anderson

A submanifold $M$ of a Euclidean $m$-space is said to be biharmonic if $\Delta \overrightarrow H=0$ holds identically, where $\overrightarrow H$ is the mean curvature vector field and $\Delta$ is the Laplacian on $M$. In 1991, the author…

微分几何 · 数学 2013-07-16 Bang-Yen Chen

We present a reduction of codimension theorem for surfaces with parallel mean curvature in symmetric spaces.

微分几何 · 数学 2015-05-27 M. J. Ferreira , R. Tribuzy

In this paper, we first study the behavior of inverse mean curvature flow in Schwarzschild manifold. We show that if the initial hypersurface $\Sigma$ is strictly mean convex and star-shaped, then the flow hypersurface $\Sigma_t$ converges…

微分几何 · 数学 2017-04-26 Haizhong Li , Yong Wei

In this paper we obtain lower bound estimates of the spectrum of Laplace-Beltrami operator on complete submanifolds with bounded mean curvature, whose ambient space admits a Riemannian submersion over a Riemannian manifold with negative…

微分几何 · 数学 2017-10-19 Marcos Petrúcio Cavalcante , Fernando Manfio

We obtain necessary conditions for the existence of complete vertical graphs of constant mean curvature in the Hyperbolic and Steady State spaces. In the two-dimensional case we prove Bernstein-type results in each of these ambient spaces.

微分几何 · 数学 2007-05-23 Antonio Caminha , Henrique F. de Lima

It is shown that a hypersurface of a space form is the initial data for a solution to the mean curvature flow by parallel hypersurfaces if, and only if, it is isoparametric. By solving an ordinary differential equation, explicit solutions…

微分几何 · 数学 2017-10-06 Hiuri Fellipe Santos dos Reis , Keti Tenenblat

We construct examples of compact and one-ended constant mean curvature surfaces with large mean curvature in Riemannian manifolds with axial symmetry by gluing together small spheres positioned end-to-end along a geodesic. Such surfaces…

微分几何 · 数学 2008-12-17 Adrian Butscher , Rafe Mazzeo

Families of conformal field theories are naturally endowed with a Riemannian geometry which is locally encoded by correlation functions of exactly marginal operators. We show that the curvature of such conformal manifolds can be computed…

高能物理 - 理论 · 物理学 2023-08-09 Bruno Balthazar , Clay Cordova

We present a survey of some results and questions related to the notion of scalar curvature in the setting of symplectic supermanifolds.

微分几何 · 数学 2018-05-11 Rosalía Hernández-Amador , Juan Monterde , José A Vallejo

Under suitable conditions on the range of the Gauss map of a complete submanifold of Euclidean space with parallel mean curvature, we construct a strongly subharmonic function and derive a-priori estimates for the harmonic Gauss map. The…

微分几何 · 数学 2010-09-21 J. Jost , Y. L. Xin , Ling Yang

Given a complete hypersurface isometrically immersed in an ambient manifold, in this paper we provide a lower bound for the norm of the mean curvature vector field of the immersion assuming that: 1) The ambient manifold admits a Killing…

微分几何 · 数学 2017-12-22 Vicent Gimeno

In this paper, we prove that minimal hypersurfaces when $n\geq 3$ and nonzero constant mean curvature hypersurfaces when $n\geq2$ foliated by spheres in parallel horizontal hyperplanes in ${\mathbb{H}}^n \times \mathbb{R}$ must be…

微分几何 · 数学 2010-02-23 Keomkyo Seo