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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…

Differential Geometry · Mathematics 2025-01-10 Stefano Montaldo , Alvaro Pampano

For every $p\in\mathbb{R}$, we study $p$-elastic curves in the hyperbolic plane $\mathbb{H}^2$ and in the de Sitter $2$-space $\mathbb{H}_1^2$. We analyze the existence of closed $p$-elastic curves with nonconstant curvature showing that in…

Differential Geometry · Mathematics 2026-01-23 Alvaro Pampano , Miraj Samarakkody , Hung Tran

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…

Differential Geometry · Mathematics 2021-10-08 Yu Fu , Min-Chun Hong , Dan Yang , Xin Zhan

For $p\in\mathbb{R}$, we show that non-circular closed $p$-elastic curves in $\mathbb{S}^2$ exist only when $p=2$, in which case they are classical elastic curves, or when $p\in(0,1)$. In the latter case, we prove that for every pair of…

Differential Geometry · Mathematics 2022-09-26 Anthony Gruber , Alvaro Pampano , Magdalena Toda

We classify non-minimal biconservative surfaces with parallel mean curvature vector field in $\mathbb{S}^n\times\mathbb{R}$ and $\mathbb{H}^n\times\mathbb{R}$. When these surfaces do not lie in $\mathbb{S}^n$ or $\mathbb{H}^n$ and they are…

Differential Geometry · Mathematics 2014-08-26 Dorel Fetcu , Cezar Oniciuc , Ana Lucia Pinheiro

In this article we study $p$-biharmonic curves as a natural generalization of biharmonic curves. In contrast to biharmonic curves $p$-biharmonic curves do not need to have constant geodesic curvature if $p=\frac{1}{2}$ in which case their…

Differential Geometry · Mathematics 2024-04-22 Volker Branding

In this paper we present alternative proofs for two known rigidity results concerning non-negatively curved compact biconservative hypersurfaces in space forms. Further, we prove some new rigidity results by replacing the hypothesis of…

Differential Geometry · Mathematics 2024-09-30 Ştefan Andronic , Aykut Kayhan

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…

Differential Geometry · Mathematics 2017-04-17 Simona Nistor , Cezar Oniciuc

Let m>1 and n>1 be any pair of integers. In this paper we prove that if H is between the numbers \cot(\frac{\pi}{m}) and b_{m,n}=\frac{(m^2-2)\sqrt{n-1}}{n\sqrt{m^2-1}}, then, there exists a non isoparametric, compact embedded hypersurface…

Differential Geometry · Mathematics 2009-03-10 Oscar Perdomo

We construct simply connected, complete, non-$CMC$ biconservative surfaces in the $3$-dimensional hyperbolic space $\mathbb{H}^3$ in an intrinsic and extrinsic way. We obtain three families of such surfaces, and, for each surface, the set…

Differential Geometry · Mathematics 2019-09-30 Simona Nistor , Cezar Oniciuc

In this paper, we describe a family of embedded hypersurfaces with constant mean curvature (CMC) in the $(n+1)$-dimensional unit sphere. In the process, we provide evidence for new CMC embedded examples. In particular, for some examples…

Differential Geometry · Mathematics 2025-03-19 Oscar Perdomo

In this paper, we study biconservative hypersurfaces of index 2 in $\mathbb E^{5}_{2}$. We give the complete classification of biconservative hypersurfaces with diagonalizable shape operator at exactly three distinct principal curvatures.…

Differential Geometry · Mathematics 2016-09-07 Abhitosh Upadhyay , Nurettin Cenk Turgay

Biconservative hypersurfaces are hypersurfaces with conservative stress-energy tensor with respect to the bienergy functional, and form a geometrically interesting family which includes that of biharmonic hypersurfaces. In this paper we…

Differential Geometry · Mathematics 2016-09-15 Stefano Montaldo , Irene I. Onnis , Apoena Passos Passamani

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…

Differential Geometry · Mathematics 2026-05-22 Simona Nistor , Mihaela Rusu

We approach the one-parameter family of rotational constant mean curvature (CMC) spheres of $\mathbb H^n\times\mathbb R$ and $\mathbb S^n\times\mathbb R$ focusing on their stability and isoperimetry properties. We prove that all rotational…

Differential Geometry · Mathematics 2024-11-19 Ronaldo F. de Lima , Maria F. Elbert , Barbara Nelli

We prove that in Euclidean space $R^{n+1}$ any compact immersed nonnegatively curved hypersurface $M$ with free boundary on the sphere $S^n$ is an embedded convex topological disk. In particular, when the $m^{th}$ mean curvature of $M$ is…

Differential Geometry · Mathematics 2019-04-02 Mohammad Ghomi , Changwei Xiong

We study hypersurfaces in the pseudo-Euclidean space $\mathbb{E}^{n+1}_s$, which write as a warped product of a $1$-dimensional base with an $(n-1)$-manifold of constant sectional curvature. We show that either they have constant sectional…

Differential Geometry · Mathematics 2022-08-17 Marilena Moruz

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…

Differential Geometry · Mathematics 2022-11-16 Simona Nistor , Cezar Oniciuc , Nurettin Cenk Turgay , Rüya Yeğin Şen

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…

Differential Geometry · Mathematics 2025-09-29 Ştefan Andronic , Stefano Montaldo , Cezar Oniciuc , Antonio Sanna

In this article we consider PMC surfaces in complex space forms, and we study the interaction between the notions of PMC, totally real and biconservative. We first consider PMC surfaces in non-flat complex space forms and we prove that they…

Differential Geometry · Mathematics 2021-07-27 Hiba Bibi , Bang-Yen Chen , Dorel Fetcu , Cezar Oniciuc
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