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We show that closed starshaped hypersurfaces of space forms with almost constant mean curvature or almost constant higher order mean curvature are closed to geodesic spheres.

Differential Geometry · Mathematics 2022-07-12 Julien Roth , Abhitosh Upadhyay

In this paper, we study $n$-dimensional complete minimal hypersurfaces in a unit sphere. We prove that an $n$-dimensional complete minimal hypersurface with constant scalar curvature in a unit sphere with $f_3$ constant is isometric to the…

Differential Geometry · Mathematics 2021-04-30 Qing-Ming Cheng , Guoxin Wei , Takuya Yamashiro

We classify the hypersurfaces of dimension n >= 3 with constant sectional curvature in the product spaces R^k x S^{n-k+1} and R^k x H^{n-k+1}, for 2 <= k <= n-1. Our results provide a complete description of these hypersurfaces and extend…

Differential Geometry · Mathematics 2025-10-21 Arnando Carvalho , Ruy Tojeiro

In this paper we study the geometry of complete constant mean curvature (CMC) hypersurfaces immersed in an (n + 1)-dimensional Riemannian manifold N (n = 2, 3 and 4) with sectional curvatures uniformly bounded from below. We generalise…

Differential Geometry · Mathematics 2025-01-07 Giuseppe Tinaglia , Alex Zhou

We first prove a general gluing theorem which creates new nondegenerate constant mean curvature surfaces by attaching half Delaunay surfaces with small necksize to arbitrary points of any nondegenerate CMC surface. The proof uses the method…

Differential Geometry · Mathematics 2007-05-23 Rafe Mazzeo , Frank Pacard , Dan Pollack

We consider a general theory of curvatures of discrete surfaces equipped with edgewise parallel Gauss images, and where mean and Gaussian curvatures of faces are derived from the faces' areas and mixed areas. Remarkably these notions are…

Differential Geometry · Mathematics 2017-09-06 Alexander I. Bobenko , Helmut Pottmann , Johannes Wallner

We obtain a $1$-parameter family of horizontal Delaunay surfaces with positive constant mean curvature in $\mathbb{S}^2\times\mathbb{R}$ and $\mathbb{H}^2\times\mathbb{R}$, being the mean curvature larger than $\frac{1}{2}$ in the latter…

Differential Geometry · Mathematics 2025-07-25 José M. Manzano , Francisco Torralbo

We consider constant mean curvature surfaces of finite topology, properly embedded in three-space in the sense of Alexandrov. Such surfaces with three ends and genus zero were constructed and completely classified by the authors in…

Differential Geometry · Mathematics 2007-12-05 Karsten Grosse-Brauckmann , Robert B. Kusner , John M. Sullivan

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…

Differential Geometry · Mathematics 2016-06-22 Márcio Batista , Marcos P. Cavalcante , Dorel Fetcu

For all $m \in \mathbb N - \{0\}$, we prove the existence of a one dimensional family of genus $m$, constant mean curvature (equal to 1) surfaces which are complete, immersed in $\mathbb R^3$ and have two Delaunay ends asymptotic to…

Differential Geometry · Mathematics 2010-10-26 Frank Pacard , Harold Rosenberg

We describe the curves of constant (geodesic) curvature and torsion in the three-dimensional round sphere. These curves are the trajectory of a point whose motion is the superposition of two circular motions in orthogonal planes. The global…

Differential Geometry · Mathematics 2018-10-17 Debraj Chakrabarti , Rahul Sahay , Jared Williams

We present a general construction of embedded minimal and constant mean curvature surfaces in $\mathbb{S}^n$ and one-phase free boundaries joined by a smooth interpolation by capillary hypersurfaces. This framework recovers all known…

Differential Geometry · Mathematics 2026-04-07 Benjy Firester , Raphael Tsiamis

As first noted in Korevaar, Kusner and Solomon ("KKS"), constant mean curvature implies a homological conservation law for hypersurfaces in ambient spaces with Killing fields.In Theorem 3.5 here, we generalize that law by relaxing the…

Differential Geometry · Mathematics 2016-01-20 Nick Edelen , Bruce Solomon

We consider convex, spacelike hypersurfaces with boundaries on some hyperboloid (or lightcone) in the Minkowski space. If the hypersurface has constant higher order mean curvature, and the angle between the normal vectors of the…

Differential Geometry · Mathematics 2025-04-11 Shanze Gao

We consider complete spacelike hypersurfaces with constant mean curvature in the open region of de Sitter space known as the steady state space. We prove that if the hypersurface is bounded away from the infinity of the ambient space, then…

Differential Geometry · Mathematics 2009-02-17 Alma L. Albujer , Luis J. Alias

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…

Differential Geometry · Mathematics 2014-10-22 Rafael López , Juncheol Pyo

The problem of existence of spacelike hypersurfaces with constant mean curvature in asymptotically flat spacetimes is considered for a class of asymptotically Schwarzschild spacetimes satisfying an interior condition. Using a barrier…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Lars Andersson , Mirta S. Iriondo

We complete the theoretical framework required for the construction of a Morse homology theory for certain types of forced mean curvature flows. The main result of this paper describes the asymptotic behaviour of these flows as the forcing…

Differential Geometry · Mathematics 2016-01-15 Graham Smith

We derive parametrizations of the Delaunay constant mean curvature surfaces of revolution that follow directly from parametrizations of the conics that generate these surfaces via the corresponding roulette. This uniform treatment exploits…

Differential Geometry · Mathematics 2014-07-25 Enrique Bendito , Mark J. Bowick , Agustin Medina

We give the first rigorous construction of complete, embedded self-shrinking hypersurfaces under mean curvature flow, since Angenent's torus in 1989. The surfaces exist for any sufficiently large prescribed genus $g$, and are non-compact…

Differential Geometry · Mathematics 2019-03-13 Nikolaos Kapouleas , Stephen J. Kleene , Niels Martin Møller