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In this paper, we consider a new length preserving curve flow for convex curves in the plane. We show that the global flow exists, the area of the region bounded by the evolving curve is increasing, and the evolving curve converges to the…

微分几何 · 数学 2008-11-14 Li Ma , Anqiang Zhu

In \cite{Luo0}, Feng Luo conjectured that the discrete Yamabe flow will converge to the constant curvature PL-metric after finite number of surgeries on the triangulation. In this paper, we prove that the flow can always be extended…

几何拓扑 · 数学 2016-05-02 Huabin Ge , Wenshuai Jiang

Nonlinear variational methods have become very powerful tools for many image processing tasks. Recently a new line of research has emerged, dealing with nonlinear eigenfunctions induced by convex functionals. This has provided new insights…

计算机视觉与模式识别 · 计算机科学 2016-09-28 Raz Z. Nossek , Guy Gilboa

We introduce a regularization method for mean curvature flow of a submanifold of arbitrary codimension in the Euclidean space, through higher order equations. We prove that the regularized problems converge to the mean curvature flow for…

偏微分方程分析 · 数学 2007-05-23 Giovanni Bellettini , Carlo Mantegazza , Matteo Novaga

Morphing is a long-standing problem in vision and computer graphics, requiring a time-dependent warping for feature alignment and a blending for smooth interpolation. Recently, multilayer perceptrons (MLPs) have been explored as implicit…

MeanFlow offers a promising framework for one-step generative modeling by directly learning a mean-velocity field, bypassing expensive numerical integration. However, we find that the highly curved generative trajectories of existing models…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Xinxi Zhang , Shiwei Tan , Quang Nguyen , Quan Dao , Ligong Han , Xiaoxiao He , Tunyu Zhang , Chengzhi Mao , Dimitris Metaxas , Vladimir Pavlovic

An algorithm is proposed for generalized mean curvature flow of closed two-dimensional surfaces, which include inverse mean curvature flow, powers of mean and inverse mean curvature flow, etc. Error estimates are proven for semi- and full…

数值分析 · 数学 2021-03-16 Tim Binz , Balázs Kovács

We introduce action-driven flows for causal variational principles, being a class of non-convex variational problems emanating from applications in fundamental physics. In the compact setting, H\"older continuous curves of measures are…

数学物理 · 物理学 2026-05-27 Felix Finster , Franz Gmeineder

In the article, we generalize some recent results of Colding and Minicozzi on generic singularities of mean curvature flow to curved ambient spaces. To do so, we make use of a weighted monotonicity formula to derive an "almost monotonicity"…

微分几何 · 数学 2017-07-04 Alexander Mramor

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…

偏微分方程分析 · 数学 2024-02-19 Bendong Lou , Lixia Yuan

Mean curvature flow evolves isometrically immersed base manifolds $M$ in the direction of their mean curvatures in an ambient manifold $\bar{M}$. If the base manifold $M$ is compact, the short time existence and uniqueness of the mean…

微分几何 · 数学 2007-06-13 Bing-Long Chen , Le Yin

We investigate the evolution of open curves with fixed endpoints under the curve shortening flow, which evolves curves in proportion to their curvature. Using a distance comparison of Huisken, we determine the long-term behavior of open…

微分几何 · 数学 2015-04-01 Paul T. Allen , Adam Layne , Katharine Tsukahara

Recent pre-trained text-to-image flow models have enabled remarkable progress in text-based image editing. Mainstream approaches adopt a corruption-then-restoration paradigm, where the source image is first corrupted into an editable…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Yanghao Wang , Zhen Wang , Long Chen

In the past, normalizing generative flows have emerged as a promising class of generative models for natural images. This type of model has many modeling advantages: the ability to efficiently compute log-likelihood of the input data, fast…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Alexander Kolesnikov , André Susano Pinto , Michael Tschannen

Several non-local curvature flows for plane curves with a general rotation number are discussed in this work. The types of flows include the area-preserving flow and the length-preserving flow. We have a relatively good understanding of…

偏微分方程分析 · 数学 2020-03-16 Takeyuki Nagasawa , Kohei Nakamura

In this note we establish exponentially fast smooth convergence for global curve diffusion flows, and discuss open problems relating embeddedness to global existence (Giga's conjecture) and the shape of Type I singularities (Chou's…

微分几何 · 数学 2020-04-23 Glen Wheeler

The aim in these lectures is to study singularity formation, nonuniqueness, and topological change in motion by mean curvature.

微分几何 · 数学 2026-01-30 Tom Ilmanen

In this paper, we study a curve flow which preserves the anisotropic length of the evolving curve, and show that for any convex closed initial curve, the flow exists for all time and the evolving curve converges to a homothety of the…

微分几何 · 数学 2023-11-06 Zezhen Sun

The creeping flow of a generalized Newtonian fluid in a non--uniform pore throat is investigated analytically. The analytical solution determines the flow regimes and the transition point from Newtonian to the power law flow regime. As an…

流体动力学 · 物理学 2017-07-18 Hassan Fayed

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.

偏微分方程分析 · 数学 2009-09-29 Changfeng Gui , Huaiyu Jian , Hongjie Ju