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We construct noncompact solutions to the affine normal flow of hypersurfaces, and show that all ancient solutions must be either ellipsoids (shrinking solitons) or paraboloids (translating solitons). We also provide a new proof of the…

Differential Geometry · Mathematics 2007-05-23 John Loftin , Mao-Pei Tsui

It is shown that a hypersurface of a space form is the initial data for a solution to the mean curvature flow by parallel hypersurfaces if, and only if, it is isoparametric. By solving an ordinary differential equation, explicit solutions…

Differential Geometry · Mathematics 2017-10-06 Hiuri Fellipe Santos dos Reis , Keti Tenenblat

Error estimates are proved for an evolving surface finite element semi-discretization for anisotropic mean curvature flow of closed surfaces. For the geometric surface flow, a system coupling the anisotropic evolution law to parabolic…

Numerical Analysis · Mathematics 2025-08-05 Klaus Deckelnick , Harald Garcke , Balázs Kovács

Recently a new no-global-recollapse argument was given for some inhomogeneous and anisotropic cosmologies that utilizes surface deformation by the mean curvature flow. In this paper we discuss important properties of the mean curvature flow…

General Relativity and Quantum Cosmology · Physics 2016-08-17 Ali Kaya

In this paper, we study the convexity, interior gradient estimate, Liouville type theorem and asymptotic behavior at infinity of translating solutions to mean curvature flow as well as the nonlinear flow by powers of the mean curvature.

Analysis of PDEs · Mathematics 2009-09-29 Changfeng Gui , Huaiyu Jian , Hongjie Ju

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

In this paper, we investigate the mean curvature flows starting from all non-minimal leaves of the isoparametric foliation given by a certain kind of solvable group action on a symmetric space of non-compact type. We prove that the mean…

Differential Geometry · Mathematics 2020-04-03 Naoyuki Koike

We prove that any translating soliton for the mean curvature flow which is noncollapsed and uniformly 2-convex must be the rotationally symmetric bowl soliton. In particular, this proves a conjecture of White and Wang, in the 2-convex case…

Differential Geometry · Mathematics 2015-08-12 Robert Haslhofer

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

We address in this paper the study of a geometric evolution, corresponding to a curvature which is non-local and singular at the origin. The curvature represents the first variation of the energy recently proposed as a variant of the…

Analysis of PDEs · Mathematics 2012-01-26 Antonin Chambolle , Massimiliano Morini , Marcello Ponsiglione

We show that any strictly mean convex translator of dimension $n\geq 3$ which admits a cylindrical estimate and a corresponding gradient estimate is rotationally symmetric. As a consequence, we deduce that any translating solution of the…

Differential Geometry · Mathematics 2016-06-01 Theodora Bourni , Mat Langford

We give a short and self-contained proof for rates of convergence of the Allen-Cahn equation towards mean curvature flow, assuming that a classical (smooth) solution to the latter exists and starting from well-prepared initial data. Our…

Analysis of PDEs · Mathematics 2020-08-19 Julian Fischer , Tim Laux , Theresa M. Simon

We demonstrate that the property of being Alexandrov immersed is preserved along mean curvature flow. Furthermore, we demonstrate that mean curvature flow techniques for mean convex embedded flows such as noncollapsing and gradient…

Differential Geometry · Mathematics 2022-06-29 Ben Lambert , Elena Mäder-Baumdicker

In this paper, we introduce and study the conformal mean curvature flow of submanifolds of higher codimension in the Euclidean space $\bbr^n$. This kind of flow is a special case of a general modified mean curvature flow which is of various…

Differential Geometry · Mathematics 2018-02-13 Xingxiao Li , Di Zhang

We show that the norm of the Riemann curvature tensor of any smooth solution to the Ricci flow can be explicitly estimated in terms of its initial values on a given ball, a local uniform bound on the Ricci tensor, and the elapsed time. This…

Differential Geometry · Mathematics 2015-12-15 Brett Kotschwar , Ovidiu Munteanu , Jiaping Wang

For an ancient solution of the mean curvature flow, we show that each time slice M_t is contained in an affine subspace with dimension bounded in terms of the density and the dimension of the evolving submanifold. Recall that an ancient…

Differential Geometry · Mathematics 2007-05-23 Maria Calle

We prove uniform curvature estimates for homogeneous Ricci flows: For a solution defined on $[0,t]$ the norm of the curvature tensor at time $t$ is bounded by the maximum of $C(n)/t$ and $C(n) ( scal(g(t)) - scal(g(0)) )$. This is used to…

Differential Geometry · Mathematics 2016-06-02 Christoph Böhm , Ramiro Lafuente , Miles Simon

We construct $O(1)\times O(n)$-invariant ancient ``pancake'' solutions to a large and natural class of fully nonlinear curvature flows. We then establish that these are the unique $O(n)$-invariant ancient solutions to the corresponding flow…

Differential Geometry · Mathematics 2023-03-17 Sathya Rengaswami , Mat Langford

We study the evolution of hypersurfaces in spacetime initial data sets by their null mean curvature. A theory of weak solutions is developed using the level-set approach. Starting from an arbitrary mean convex, outer untapped hypersurface…

Differential Geometry · Mathematics 2022-08-16 Theodora Bourni , Kristen Moore
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