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In this paper we establish a general form of the isoperimetric inequality for immersed closed curves (possibly non-convex) in the plane under rotational symmetry. As an application we obtain a global existence result for the surface…

Differential Geometry · Mathematics 2021-01-20 Tatsuya Miura , Shinya Okabe

Mean curvature flows of isoparametric submanifolds in Euclidean spaces and spheres have been studied by Liu and Terng. In particular, it was proved that such flows always have ancient solutions. This is also true for mean curvature flows of…

Differential Geometry · Mathematics 2025-12-24 Xiaobo Liu , Wanxu Yang

We consider mean curvature flow of n-dimensional surface clusters. At (n-1)-dimensional triple junctions an angle condition is required which in the symmetric case reduces to the well-known 120 degree angle condition. Using a novel…

Analysis of PDEs · Mathematics 2015-06-05 Daniel Depner , Harald Garcke , Yoshihito Kohsaka

We derive a continuum mean-curvature flow as a certain hydrodynamic scaling limit of a class of Glauber+Zero-range particle systems. The Zero-range part moves particles while preserving particle numbers, and the Glauber part governs the…

Probability · Mathematics 2023-08-02 Perla El Kettani , Tadahisa Funaki , Danielle Hilhorst , Hyunjoon Park , Sunder Sethuraman

We consider the motion by curvature of a network of smooth curves with multiple junctions in the plane, that is, the geometric gradient flow associated to the length functional. Such a flow represents the evolution of a two--dimensional…

Analysis of PDEs · Mathematics 2007-05-23 Carlo Mantegazza , Matteo Novaga , Vincenzo Maria Tortorelli

We consider the dynamic property of the volume preserving mean curvature flow. This flow was introduced by Huisken who also proved it converges to a round sphere of the same enclosed volume if the initial hypersurface is strictly convex in…

Differential Geometry · Mathematics 2021-07-29 Zheng Huang , Longzhi Lin , Zhou Zhang

We prove convergence results for expanding curvature flows in the Euclidean and hyperbolic space. The flow speeds have the form $F^{-p}$, where $p>1$ and $F$ is a positive, strictly monotone and 1-homogeneous curvature function. In…

Differential Geometry · Mathematics 2019-07-09 Heiko Kröner , Julian Scheuer

We prove: "If $M$ is a compact hypersurface of the hyperbolic space, convex by horospheres and evolving by the volume preserving mean curvature flow, then it flows for all time, convexity by horospheres is preserved and the flow converges,…

Differential Geometry · Mathematics 2007-05-23 Esther Cabezas-Rivas , Vicente Miquel

In this paper, we first consider a class of expanding flows of closed, smooth, star-shaped hypersurface in Euclidean space $\mathbb{R}^{n+1}$ with speed $u^\alpha f^{-\beta}$, where $u$ is the support function of the hypersurface, $f$ is a…

Differential Geometry · Mathematics 2021-04-13 Shanwei Ding , Guanghan Li

We study self-expanding solutions $M^m\subset\mathbb{R}^{n}$ of the mean curvature flow. One of our main results is, that complete mean convex self-expanding hypersurfaces are products of self-expanding curves and flat subspaces, if and…

Differential Geometry · Mathematics 2020-05-13 Knut Smoczyk

We construct a new example of an immortal mean curvature flow of smooth embedded connected surfaces in $\mathbb R^3$, which converges to a plane with multiplicity $2$ as time approaches infinity.

Differential Geometry · Mathematics 2025-08-21 Jingwen Chen , Ao Sun

This paper presents a method for computing two-dimensional constant mean curvature surfaces. The method in question uses the variational aspect of the problem to implement an efficient algorithm. In principle it is a flow like method in…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Jan Metzger

We consider a two-phase flow of two incompressible, viscous and immiscible fluids which are separated by a sharp interface in the case of a simple phase transition. In this model the interface is no longer material and its evolution is…

Analysis of PDEs · Mathematics 2017-06-01 Helmut Abels , Maximilian Moser

We consider the mean curvature flow of a closed hypersurface in the complex or quaternionic projective space. Under a suitable pinching assumption on the initial data, we prove apriori estimates on the principal curvatures which imply that…

Differential Geometry · Mathematics 2016-10-04 Giuseppe Pipoli , Carlo Sinestrari

This paper deals with a generalized length-preserving flow for convex curves in the plane. It is shown that the flow exists globally and deforms convex curves into circles as time tends to infinity.

Differential Geometry · Mathematics 2025-04-03 Laiyuan Gao , Shengliang Pan

We make observations about constant mean curvature surfaces in Euclidean 3-space and their dual surfaces, and the resulting pairs of surfaces in hyperbolic 3-space under the Lawson correspondence.

Differential Geometry · Mathematics 2012-06-26 Wayne Rossman , Magdalena Toda

We review progress in active hydrodynamic descriptions of flowing media on curved and deformable manifolds: the state-of-the-art in continuum descriptions of single-layers of epithelial and/or other tissues during development. First, after…

Biological Physics · Physics 2021-03-24 Sami C. Al-Izzi , Richard G. Morris

This paper is concerned with the motion of a time dependent hypersurface that evolves by mean curvature flow with a a volume constraint. Phase field approximation of this motion leads to the well known nonlocal Allen--Cahn equation. Here we…

Numerical Analysis · Mathematics 2009-04-02 Elie Bretin , Morgan Brassel

We study the rescaled mean curvature flow (MCF) of hypersurfaces that are global graphs over a fixed cylinder of arbitrary dimensions. We construct an explicit stable manifold for the rescaled MCF of finite codimensions in a suitable…

Differential Geometry · Mathematics 2021-11-22 Jingxuan Zhang

We consider the volume preserving flow of smooth, closed and convex hypersurfaces in the hyperbolic space $\mathbb{H}^{n+1}$ with speed given by a general nonhomogeneous function of the Gauss curvature. For a large class of speed functions,…

Differential Geometry · Mathematics 2025-04-04 Yong Wei , Bo Yang , Tailong Zhou