English
Related papers

Related papers: Entire unbounded constant mean curvature Killing g…

200 papers

We study constant mean curvature graphs in the Riemannian 3-dimensional Heisenberg spaces ${\cal H}={\cal H}(\tau)$. Each such ${\cal H}$ is the total space of a Riemannian submersion onto the Euclidean plane $\mathbb{R}^2$ with geodesic…

Differential Geometry · Mathematics 2008-03-03 Luis J. Alias , Marcos Dajczer , Harold Rosenberg

In this article we derive an explicit diameter bound for graphs satisfying the so-called curvature dimension conditions $CD(K,n)$. This refines a recent result due to Liu, M\"unch and Peyerimhoff when the dimension $n$ is finite.

Combinatorics · Mathematics 2024-05-21 Yi C. Huang , Ze Yang

In this paper, we give a height estimate for constant mean curvature graphs. Using this result we prove two results of uniqueness for the Dirichlet problem associated to the constant mean curvature equation on unbounded domains.

Differential Geometry · Mathematics 2007-05-23 Laurent Mazet

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 present sweeping line graphs, a generalization of $\Theta$-graphs. We show that these graphs are spanners of the complete graph, as well as of the visibility graph when line segment constraints or polygonal obstacles are considered. Our…

Computational Geometry · Computer Science 2024-01-09 Keenan Lee , André van Renssen

In this paper we study the Gauss map of hypersurfaces with constant weighted mean curvature in the Gaussian space. We show that if the image of the Gauss map is in a closed hemisphere, then the hypersurface is a hyperplane or a generalized…

Differential Geometry · Mathematics 2024-01-24 Michael Gomez , Matheus Vieira

We extend the estimate obtained in [1] for the mean curvature of a cylindrically bounded proper submanifold in a product manifold with an Euclidean space as one factor to a general product ambient space endowed with a warped product…

Differential Geometry · Mathematics 2011-07-08 Luis J. Alias , Marcos Dajczer

For a subset $X$ of the vertex set $\VV(\GG)$ of a graph $\GG$, we denote the set of edges of $\GG$ which have exactly one end in $X$ by $\partial(X)$ and refer to it as the cut of $X$ or edge cut $\partial(X)$. A graph $\GG=(\VV,\EE)$ is…

Combinatorics · Mathematics 2025-10-30 Koustav De

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.

Differential Geometry · Mathematics 2007-05-23 Antonio Caminha , Henrique F. de Lima

We prove an existence result for helicoidal graphs with prescribed mean curvature in a large class of warped product spaces which comprises space forms.

Differential Geometry · Mathematics 2008-10-17 M. Dajczer , J. H. de Lira

We study mean convex mean curvature flow $M_s$ of local spacelike graphs in the flat slicing of de Sitter space. We show that if the initial slice is of non-negative time and is graphical over a large enough ball, and if $M_s$ is of bounded…

Differential Geometry · Mathematics 2023-07-24 Or Hershkovits , Leonardo Senatore

We prove distance bounds for graphs possessing positive Bakry-\'Emery curvature apart from an exceptional set, where the curvature is allowed to be non-positive. If the set of non-positively curved vertices is finite, then the graph admits…

Differential Geometry · Mathematics 2019-03-26 Shiping Liu , Florentin Münch , Norbert Peyerimhoff , Christian Rose

In this paper, we classify unweighted graphs satisfying the curvature dimension condition CD(0,\infty) whose girth are at least five.

Combinatorics · Mathematics 2016-08-26 Bobo Hua , Yong Lin

We show that a non-piercing family of connected planar sets with bounded independence number can be stabbed with a constant number of points. As a consequence, we answer a question of Axenovich, Kie{\ss}le and Sagdeev about the largest…

Combinatorics · Mathematics 2025-09-03 Dömötör Pálvölgyi , Kristóf Zólomy

We consider random perfect matchings on a general class of contracting bipartite graphs by letting certain edge weights be 0 on the contracting square-hexagon lattice in a periodic way. We obtain a deterministic limit shape in the scaling…

Probability · Mathematics 2021-01-07 Zhongyang Li

A region crossing change is a local transformation on spatial graph diagrams switching the over/under relations at all the crossings on the boundary of a region. In this paper, we show that a spatial graph of a planar graph is unknottable…

Geometric Topology · Mathematics 2020-10-06 Yukari Funakoshi , Kenta Noguchi , Ayaka Shimizu

In this article, we illustrate how the concept of slope limiter can be interpreted graphically, i.e., how the slope of reconstructed piecewise linear function is limited by four bounding lines that connect cell-averaged data and its…

Numerical Analysis · Mathematics 2021-02-09 Ling Zou

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…

Differential Geometry · Mathematics 2008-12-17 Adrian Butscher , Rafe Mazzeo

An integral geometric curvature is defined as the index expectation K(x) = E[i(x)] if a probability measure m is given on vector fields on a Riemannian manifold or on a finite simple graph. Such curvatures are local, satisfy Gauss-Bonnet…

Combinatorics · Mathematics 2019-12-25 Oliver Knill

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.

Differential Geometry · Mathematics 2011-05-17 Jose M. Espinar , Harold Rosenberg