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In the present paper, we study timelike surfaces with parallel normalized mean curvature vector field in the four-dimensional Minkowski space. We introduce special isotropic parameters on each such surface, which we call canonical…

Differential Geometry · Mathematics 2024-01-18 Victoria Bencheva , Velichka Milousheva

Finite topology self translating surfaces to mean curvature flow of surfaces constitute a key element for the analysis of Type II singularities from a compact surface, since they arise in a limit after suitable blow-up scalings around the…

Analysis of PDEs · Mathematics 2015-01-19 Juan Dávila , Manuel del Pino , Xuan Hien Nguyen

This paper investigates curve flows on the light-cone in the 3-dimensional Minkowski space. We derive the Harnack inequality for the heat flow and present a detailed classification of space-periodic solitons for a third-order curvature…

Differential Geometry · Mathematics 2025-02-11 Yun Yang

In this paper we study a normalised anisotropic Gauss curvature flow of strictly convex, closed hypersurfaces in the Euclidean space R^n+1. We prove that the flow exists for all time and converges smoothly to the unique, strictly convex…

Analysis of PDEs · Mathematics 2020-01-22 Li Chen , Qiang Tu , Di Wu , Ni Xiang

In the present article we obtain classification results and topological obstructions for the existence of translating solitons of the mean curvature flow.

Differential Geometry · Mathematics 2014-04-29 Francisco Martin , Andreas Savas-Halilaj , Knut Smoczyk

The purpose of these notes is to provide an introduction to those who want to learn more about translating solitons for the mean curvature flow in $\mathbb{R}^3$, particularly those which are complete graphs over domains in $\mathbb{R}^2$.…

Differential Geometry · Mathematics 2021-12-21 David Hoffman , Tom Ilmanen , Francisco Martín , Brian White

The normal map given by Birkhoff orthogonality yields extensions of principal, Gaussian and mean curvatures to surfaces immersed in three-dimensional spaces whose geometry is given by an arbitrary norm and which are also called Minkowski…

Differential Geometry · Mathematics 2018-05-08 Vitor Balestro , Horst Martini , Ralph Teixeira

Rotation vectors, as defined for homeomorphisms of the torus that are isotopic to the identity, are generalized to such homeomorphisms of any complete Riemannian manifold with non-positive sectional curvature. These generalized rotation…

Dynamical Systems · Mathematics 2011-09-13 Pablo Lessa

We show that a suitable deformation of the algebra $h_k(1)$ of the creation and annihilation operators for a complex scalar field, initially quantized in Minkowski space--time, induces the canonical quantization of the same field in a…

High Energy Physics - Theory · Physics 2009-11-07 Alfredo Iorio , Gaetano Lambiase , Giuseppe Vitiello

A linear Weingarten surface in Euclidean space ${\bf R}^3$ is a surface whose mean curvature $H$ and Gaussian curvature $K$ satisfy a relation of the form $aH+bK=c$, where $a,b,c\in {\bf R}$. Such a surface is said to be hyperbolic when…

Differential Geometry · Mathematics 2007-06-13 Rafael Lopez

We study a generalized mean curvature flow involving a positive power of the mean curvature and a driving force. In this paper, we first construct all kinds of radially symmetric translating solutions, and then select one of them to satisfy…

Analysis of PDEs · Mathematics 2024-02-19 Bendong Lou , Lixia Yuan

In this paper we consider a free boundary problem in the 3-dimensional Lorentz-Minkowski space $\l^3$ which deals spacelike surfaces whose mean curvature is a linear function of the time coordinate and the boundary moves in a given support…

Differential Geometry · Mathematics 2007-05-23 Rafael López

We consider strictly convex hypersurfaces which are evolving by the non-parametric logarithmic Gauss curvature flow subject to a Neumann boundary condition. Solutions are shown to converge smoothly to hypersurfaces moving by translation. In…

Analysis of PDEs · Mathematics 2007-05-23 Oliver C. Schnuerer , Hartmut R. Schwetlick

In this short note we study Bernstein's type theorem of translating solitons whose images of their Gauss maps are contained in compact subsets in an open hemisphere of the standard $\mathbf{S}^n$ (see Theorem 1.1). As a special case we get…

Differential Geometry · Mathematics 2013-01-18 Chao Bao , Yuguang Shi

Studying the geometric flow plays a powerful role in mathematics and physics. In this paper, we introduce the mean curvature flow on Finsler manifolds and give a number of examples of the mean curvature flow. For Minkowski spaces, a special…

Differential Geometry · Mathematics 2017-07-06 Fanqi Zeng , Qun He , Bin Chen

We define an attractive gravity probe surface (AGPS) as a compact 2-surface $S_\alpha$ with positive mean curvature $k$ satisfying $r^a D_a k / k^2 \ge \alpha$ (for a constant $\alpha>-1/2$) in the local inverse mean curvature flow, where…

General Relativity and Quantum Cosmology · Physics 2022-01-12 Keisuke Izumi , Yoshimune Tomikawa , Tetsuya Shiromizu , Hirotaka Yoshino

The classical Minkowski inequality in the Euclidean space provides a lower bound on the total mean curvature of a hypersurface in terms of the surface area, which is optimal on round spheres. In this paper we employ a locally constrained…

Differential Geometry · Mathematics 2022-03-01 Julian Scheuer

In this paper, we describe new annular examples of complete translating solitons for the mean curvature flow and how they are related to a family of translating graphs, the $\Delta$-wings. In addition, we will prove several related results…

Differential Geometry · Mathematics 2023-09-07 D. Hoffman , F. Martin , B. White

For a surface in 3-sphere, by identifying the conformal round 3-sphere as the projectivized positive light cone in Minkowski 5-spacetime, we use the conformal Gauss map and the conformal transform to construct the associate homogeneous…

Differential Geometry · Mathematics 2016-12-14 Jie Qing , Changping Wang , Jingyang Zhong

We prove three results in this paper. First, we prove for a wide class of functions $\varphi\in C^2(\mathbb{S}^{n-1})$ and $\psi(X, \nu)\in C^2(\mathbb{R}^{n+1}\times\mathbb{H}^n),$ there exists a unique, entire, strictly convex, spacelike…

Differential Geometry · Mathematics 2024-02-14 Changyu Ren , Zhizhang Wang , Ling Xiao