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We determine all helix surfaces with parallel mean curvature vector field, which are not minimal or pseudo-umbilical, in spaces of type $M^n(c)\times\mathbb{R}$, where $M^n(c)$ is a simply-connected $n$-dimensional manifold with constant…

微分几何 · 数学 2015-06-18 Dorel Fetcu

We prove a Simons type formula for submanifolds with parallel mean curvature vector field in product spaces of type $M^n(c)\times\mathbb{R}$, where $M^n(c)$ is a space form with constant sectional curvature $c$, and then we use it to…

微分几何 · 数学 2011-12-16 Dorel Fetcu , Harold Rosenberg

In this work, we obtain a geometric description of surfaces $M^2$ of arbitrary codimension in the warped product $\mathbb{R}\times_\rho\mathbb{Q}^n_\epsilon$, with parallel mean curvature vector field in the normal connection, extending a…

微分几何 · 数学 2026-03-03 Fernando Manfio , Verônica Reis , Feliciano Vitório

In this paper we study constant mean curvature surfaces $\Sigma$ in a product space, $\mathbb{M}^2\times \mathbb{R}$, where $\mathbb{M}^2$ is a complete Riemannian manifold. We assume the angle function $\nu = \meta{N}{\partial_t}$ does not…

微分几何 · 数学 2008-08-27 Jose M. Espinar , Harold Rosenberg

In this article we study surfaces in $\mathbb{S}^3(1) \times \mathbb{R}$ for which the $\mathbb{R}$-direction makes a constant angle with the normal plane. We give a complete classification for such surfaces with parallel mean curvature…

微分几何 · 数学 2011-05-04 Daguang Chen , Gangyi Chen , Hang Chen , Franki Dillen

We prove a Simons type equation for non-minimal surfaces with parallel mean curvature vector (pmc surfaces) in $M^3(c)\times\mathbb{R}$, where $M^3(c)$ is a 3-dimensional space form. Then, we use this equation in order to characterize…

微分几何 · 数学 2011-04-01 Dorel Fetcu , Harold Rosenberg

The purpose of this article is to determine explicitly the complete surfaces with parallel mean curvature vector, both in the complex projective plane and the complex hyperbolic plane. The main results are as follows: When the curvature of…

微分几何 · 数学 2021-11-02 Katsuei Kenmotsu

We review recent results on classifying complete constant mean curvature 1 (CMC 1) surfaces in hyperbolic 3-space with low total curvature. There are two natural notions of "total curvature" -- one is the total absolute curvature, which is…

微分几何 · 数学 2009-08-03 Wayne Rossman , Masaaki Umehara , Kotaro Yamada

We prove a Simons type equation for non-minimal surfaces with parallel mean curvature vector (pmc surfaces) in $M^n(c)\times\mathbb{R}$, where $M^n(c)$ is an $n$-dimensional space form. Then, we use this equation in order to characterize…

微分几何 · 数学 2011-02-03 Dorel Fetcu , Harold Rosenberg

We survey our recent results on classifying complete constant mean curvature 1 (CMC-1) surfaces in hyperbolic 3-space with low total curvature. There are two natural notions of "total curvature"-- one is the total absolute curvature which…

微分几何 · 数学 2009-08-03 Wayne Rossman , Masaaki Umehara , Kotaro Yamada

Given $H\in [0,\infty),$ some sufficient conditions for existence of CMC $H$ graphs with boundary in two parallel planes of $\mathbb{H}^2\times\mathbb{R}$ are presented. Height estimates for outwards-oriented CMC surfaces…

微分几何 · 数学 2015-12-25 Rodrigo Soares , Patrícia Klaser , Miriam Telichevesky

We classify complete biharmonic surfaces with parallel mean curvature vector field and non-negative Gaussian curvature in complex space forms.

微分几何 · 数学 2016-02-10 Dorel Fetcu , Ana Lucia Pinheiro

The aim of this paper is to extend classic results of the theory of CMC surfaces in the product spaces to the class of immersed surfaces in $\mathbb{M}^2(\kappa)\times\mathbb{R}$ whose mean curvature is given as a $C^1$ function depending…

微分几何 · 数学 2018-07-31 Antonio Bueno

In this paper we classify complete surfaces of constant mean curvature whose Gaussian curvature does not change sign in a simply connected homogeneous manifold with a 4-dimensional isometry group.

微分几何 · 数学 2011-05-17 Jose M. Espinar , Harold Rosenberg

A complete surface of constant mean curvature 1 (CMC-1) in hyperbolic 3-space with constant curvature -1 has two natural notions of "total curvature"-- one is the total absolute curvature which is the integral over the surface of the…

微分几何 · 数学 2008-04-28 Wayne Rossman , Masaaki Umehara , Kotaro Yamada

We consider a quadratic form defined on the surfaces with parallel mean curvature vector of an any dimensional complex space form and prove that its $(2,0)$-part is holomorphic. When the complex dimension of the ambient space is equal to…

微分几何 · 数学 2010-11-30 Dorel Fetcu

In this work, complete constant mean curvature 1 (CMC-1) surfaces in hyperbolic 3-space with total absolute curvature at most 4 pi are classified. This classification suggests that the Cohn-Vossen inequality can be sharpened for surfaces…

微分几何 · 数学 2008-04-27 Masaaki Umehara , Wayne Rossman , Kotaro Yamada

We give a condition under which the findings of the paper cited above work well and determine the surfaces that were not considered before. In this paper, we show that a parallel mean curvature surface of a general type in a complex…

微分几何 · 数学 2021-11-03 K. Kenmotsu

We describe local similarities and global differences between minimal surfaces in Euclidean 3-space and constant mean curvature 1 surfaces in hyperbolic 3-space. We also describe how to solve global period problems for constant mean…

微分几何 · 数学 2008-04-29 Wayne Rossman

In this article we study the shape of a compact surface of constant mean curvature of Euclidean space whose boundary is contained in a round sphere. We consider the case that the boundary is prescribed or that the surface meets the sphere…

微分几何 · 数学 2014-10-22 Rafael López , Juncheol Pyo
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