English
Related papers

Related papers: The surface diffusion and the Willmore flow for un…

200 papers

We define a parabolic flow of pluriclosed metrics. This flow is of the same family introduced by the authors in \cite{ST}. We study the relationship of the existence of the flow and associated static metrics topological information on the…

Differential Geometry · Mathematics 2009-07-21 Jeffrey Streets , Gang Tian

We consider the evolution of hypersurfaces on the unit sphere $\mathbb{S}^{n+1}$ by smooth functions of the Weingarten map. We introduce the notion of `quasi-ancient' solutions for flows that do not admit non-trivial, convex, ancient…

Differential Geometry · Mathematics 2024-11-15 Paul Bryan , Mohammad N. Ivaki , Julian Scheuer

We investigate the issue of uniqueness of the limit flow for a relevant class of quasi-linear parabolic equations defined on the whole space. More precisely, we shall investigate conditions which guarantee that the global solutions decay at…

Analysis of PDEs · Mathematics 2016-02-10 Marco Squassina , Tatsuya Watanabe

We prove the Multiplicity One Conjecture for mean curvature flows of surfaces in $\mathbb{R}^3$. Specifically, we show that any blow-up limit of such mean curvature flows has multiplicity one. This has several applications. First, combining…

Differential Geometry · Mathematics 2024-11-13 Richard H Bamler , Bruce Kleiner

This expository paper presents the current knowledge of particular fully nonlinear curvature flows with local forcing term, so-called locally constrained curvature flows. We focus on the spherical ambient space. The flows are designed to…

Analysis of PDEs · Mathematics 2022-06-22 Chuanqiang Chen , Pengfei Guan , Junfang Li , Julian Scheuer

We found a new formulation to the Euler-Lagrange equation of the Willmore functional for immersed surfaces in ${\R}^m$. This new formulation of Willmore equation appears to be of divergence form, moreover, the non-linearities are made of…

Analysis of PDEs · Mathematics 2007-05-23 Riviere Tristan

We show that the mean curvature flow for a closed and rotationally symmetric surface can be formulated as an evolution problem consisting of an evolution equation for the square of the function whose graph is rotated and two ODEs describing…

Analysis of PDEs · Mathematics 2024-04-26 Harald Garcke , Bogdan-Vasile Matioc

We show that if M is a hyperbolic 3-manifold which admits a quasigeodesic flow, then pi_1(M) acts faithfully on a universal circle by homeomorphisms, and preserves a pair of invariant laminations of this circle. As a corollary, we show that…

Geometric Topology · Mathematics 2009-04-22 Danny Calegari

We obtain in arbitrary codimension a removability result on the order of singularity of Willmore surfaces realising the width of Willmore min-max problems on spheres. As a consequence, out of the twelve families of non-planar minimal…

Analysis of PDEs · Mathematics 2019-04-23 Alexis Michelat , Tristan Rivière

We show short time existence for the evolution of triple junction clusters driven by the surface diffusion flow. On the triple line we use the boundary conditions derived by Garcke and Novick-Cohen as the singular limit of a Cahn-Hilliard…

Analysis of PDEs · Mathematics 2019-10-08 Harald Garcke , Michael Gößwein

We consider compact convex hypersurfaces contracting by functions of their curvature. Under the mean curvature flow, uniformly convex smooth initial hypersurfaces evolve to remain smooth and uniformly convex, and contract to points after…

Analysis of PDEs · Mathematics 2011-04-06 Ben Andrews , James McCoy , Yu Zheng

We show that the surface area preserving mean curvature flow in Euclidean space exists for all time and converges exponentially to a round sphere, if initially the L^2-norm of the traceless second fundamental form is small (but the initial…

Differential Geometry · Mathematics 2012-11-06 Zheng Huang , Longzhi Lin

We prove a differential Harnack inequality for noncompact convex hypersurfaces flowing with normal speed equal to a symmetric function of their principal curvatures. This extends a result of Andrews for compact hypersurfaces. We assume that…

Differential Geometry · Mathematics 2023-10-12 Stephen Lynch

In this article we consider the inviscid two-dimensional shallow water equations in a rectangle. The flow occurs near a stationary solution in the so called supercritical regime and we establish short term existence of smooth solutions for…

Analysis of PDEs · Mathematics 2016-01-20 Aimin Huang , Madalina Petcu , Roger Temam

We study various aspects related to boundary regularity of complete properly embedded Willmore surfaces in H3, particularly those related to assumptions on boundedness or smallness of a certain weighted version of the Willmore energy. We…

Differential Geometry · Mathematics 2016-11-26 Spyros Alexakis , Rafe Mazzeo

In this paper, we study the flow of closed, starshaped hypersurfaces in $\mathbb{R}^{n+1}$ with speed $r^\alpha\sigma_2^{1/2},$ where $\sigma_2^{1/2}$ is the normalized square root of the scalar curvature, $\alpha\geq 2,$ and $r$ is the…

Differential Geometry · Mathematics 2020-08-14 Ling Xiao

Geometric gradient flows for elastic energies of Willmore type play an important role in mathematics and in many applications. The evolution of elastic curves has been studied in detail both for closed as well as for open curves. Although…

Analysis of PDEs · Mathematics 2017-12-01 Harald Garcke , Julia Menzel , Alessandra Pluda

We study a volume preserving curvature flow of convex hypersurfaces, driven by a power of the $k$-th elementary symmetric polynomial in the principal curvatures. Unlike most of the previous works on related problems, we do not require…

Differential Geometry · Mathematics 2018-02-09 Maria Chiara Bertini , Carlo Sinestrari

We introduce a mean curvature flow with global term of convex hypersurfaces in the sphere, for which the global term can be chosen to keep any quermassintegral fixed. Then, starting from a strictly convex initial hypersurface, we prove that…

Differential Geometry · Mathematics 2024-11-27 Esther Cabezas-Rivas , Julian Scheuer

In this paper, we consider the mean curvature flow of convex hypersurfaces in Euclidean spaces with a general forcing term. We show that the flow may shrink to a point in finite time if the forcing term is small, or exist for all times and…

Differential Geometry · Mathematics 2008-06-17 Guanghan Li , Isabel Salavessa