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相关论文: CMC biconservative surfaces in $\mathbb{S}^n\times…

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We find the explicit local equations of biconservative surfaces with non-constant mean curvature in $\mathbb{S}^2\times\mathbb{R}$ and $\mathbb{H}^2\times\mathbb{R}$, when the gradient of the mean curvature function is a principal…

微分几何 · 数学 2025-05-26 Dorel Fetcu

In this paper, we study biconservative submanifolds in $\mathbb{S}^{n}\times \mathbb{R}$ and $\mathbb{H}^{n}\times \mathbb{R}$ with parallel mean curvature vector field and co-dimension 2. We obtain some necessary and sufficient conditions…

微分几何 · 数学 2022-06-22 Fernando Manfio , Nurettin Cenk Turgay , Abhitosh Upadhyay

In this paper, we study biconservative surfaces with parallel normalized mean curvature vector in $\mathbb{E}^4$. We obtain complete local classification in $\mathbb{E}^4$ for a biconservative PNMCV surface. We also give an example to show…

微分几何 · 数学 2017-05-23 Rüya Yeğin Şen , Nurettin Cenk Turgay

In this paper, we study biconservative surfaces with parallel normalized mean curvature vector field ($PNMC$) in the $4$-dimensional unit Euclidean sphere $\mathbb{S}^4$. First, we study the existence and uniqueness of such surfaces. We…

微分几何 · 数学 2022-11-16 Simona Nistor , Cezar Oniciuc , Nurettin Cenk Turgay , Rüya Yeğin Şen

Biconservative surfaces of Riemannian 3-space forms $N^3(\rho)$, are either constant mean curvature (CMC) surfaces or rotational linear Weingarten surfaces verifying the relation $3\kappa_1+\kappa_2=0$ between their principal curvatures…

微分几何 · 数学 2025-01-10 Stefano Montaldo , Alvaro Pampano

Biconservative submanifolds arise as a natural relaxation of the biharmonic condition and play an important role in the submanifold theory. In this paper, we study non-CMC biconservative surfaces with parallel normalized mean curvature…

微分几何 · 数学 2026-05-22 Simona Nistor , Mihaela Rusu

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

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 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

We consider surfaces with parallel mean curvature vector field and finite total curvature in product spaces of type $\mathbb{M}^n(c)\times\mathbb{R}$, where $\mathbb{M}^n(c)$ is a space form, and characterize certain of these surfaces. When…

微分几何 · 数学 2016-06-22 Márcio Batista , Marcos P. Cavalcante , Dorel Fetcu

We obtain several rigidity results for biharmonic submanifolds in $\mathbb{S}^{n}$ with parallel normalized mean curvature vector field. We classify biharmonic submanifolds in $\mathbb{S}^{n}$ with parallel normalized mean curvature vector…

微分几何 · 数学 2015-05-30 Adina Balmus , Stefano Montaldo , Cezar Oniciuc

In this paper, we extend our investigation of the class of biconservative surfaces with non-constant mean curvature in 4-dimensional space forms $N^4(\epsilon)$. Specifically, we focus on biconservative surfaces with non-parallel normalized…

微分几何 · 数学 2025-09-29 Ştefan Andronic , Stefano Montaldo , Cezar Oniciuc , Antonio Sanna

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

We obtain compact orientable embedded surfaces with constant mean curvature $0<H<\frac{1}{2}$ and arbitrary genus in $\mathbb{S}^2\times\mathbb{R}$. These surfaces have dihedral symmetry and desingularize a pair of spheres with mean…

微分几何 · 数学 2021-01-05 José M. Manzano , Francisco Torralbo

Biconservative hypersurfaces are hypersurfaces which have conservative stress-energy tensor with respect to the bienergy, containing all minimal and constant mean curvature hypersurfaces. The purpose of this paper is to study biconservative…

微分几何 · 数学 2021-10-08 Yu Fu , Min-Chun Hong , Dan Yang , Xin Zhan

We survey some recent results on biconservative surfaces in $3$-dimensional space forms $N^3(c)$ with a special emphasis on the $c=0$ and $c=1$ cases. We study the local and global properties of such surfaces, from extrinsic and intrinsic…

微分几何 · 数学 2017-04-17 Simona Nistor , Cezar Oniciuc

In this paper we study biconservative hypersurfaces $M$ in space forms $\overline M^{n+1}(c)$ with four distinct principal curvatures whose second fundamental form has constant norm. We prove that every such hypersurface has constant mean…

微分几何 · 数学 2024-09-16 Ram Shankar Gupta , Andreas Arvanitoyeorgos

We show that constant mean curvature hypersurfaces in $\mathbb H^n\times\mathbb R$, with small and pinched boundary contained in a horizontal slice $P$ are topological disks, provided they are contained in one of the two halfspaces…

微分几何 · 数学 2021-10-11 Barbara Nelli , Giuseppe Pipoli

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 construct non-zero constant mean curvature H surfaces in the product spaces $\mathbb{S}^2 \times \mathbb{R}$ and $\mathbb{H}^2\times \mathbb{R}$ by using suitable conjugate Plateau constructions. The resulting surfaces are complete, have…

微分几何 · 数学 2014-12-16 José M. Manzano , Francisco Torralbo
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