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相关论文: A note on the Gauss curvature flow

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In this paper we study self-similar solutions in warped products satisfying $F-\mathcal{F}=\bar{g}(\lambda(r)\partial_{r},\nu)$, where $\mathcal{F}$ is a nonnegative constant and $F$ is in a class of general curvature functions including…

微分几何 · 数学 2018-02-13 Shanze Gao , Hui Ma

In this paper we study the dual Orlicz-Minkowski problem, which is a generalization of the dual Minkowski problem in convex geometry. By considering a geometric flow involving Gauss curvature and functions of normal vectors and radial…

偏微分方程分析 · 数学 2020-07-17 Li Chen , YanNan Liu , Jian Lu , Ni Xiang

The Minkowski problem of harmonic measures was first studied by Jerison [19]. Recently, Akman and Mukherjee [1] studied the Minkowski problem corresponding to $p$-harmonic measures on convex domains and generalized Jerison's results. In…

偏微分方程分析 · 数学 2024-05-07 Chao Li , Xia Zhao

In this article we extend an unknottedness theorem for compact self shrinkers to the mean curvature flow to shrinkers with one asymptotically conical end, which conjecturally comprises the entire set of self shrinkers with finite topology…

微分几何 · 数学 2024-03-12 Alexander Mramor

We study the gradient-flow structure of a non-Newtonian thin film equation with power-law rheology. The equation is quasilinear, of fourth order and doubly-degenerate parabolic. By adding a singular potential to the natural Dirichlet…

偏微分方程分析 · 数学 2023-01-26 Peter Gladbach , Jonas Jansen , Christina Lienstromberg

In this article we introduce conformal Bach flow and establish its well-posedness on closed manifolds. We also obtain its backward uniqueness. To give an attempt to study the long-time behavior of conformal Bach flow, assuming that the…

微分几何 · 数学 2021-04-20 Jiaqi Chen , Peng Lu , Jie Qing

We study graphical mean curvature flow of complete solutions defined on subsets of Euclidean space. We obtain smooth long time existence. The projections of the evolving graphs also solve mean curvature flow. Hence this approach allows to…

微分几何 · 数学 2012-10-23 Mariel Sáez Trumper , Oliver C. Schnürer

We relate the (non)existence of lower scalar curvature bounds to the existence of certain distance-decreasing maps. We also give a sufficient condition for the existence of a limiting scalar curvature measure in the backward limit of a…

微分几何 · 数学 2022-12-02 John Lott

In this paper, we discuss uniqueness and backward uniqueness for mean curvature flow of non-compact manifolds. We use an energy argument to prove two uniqueness theorems for mean curvature flow with possibly unbounded curvatures. These…

微分几何 · 数学 2019-02-05 Man-Chun Lee , John Man-shun Ma

The nonlinear Forchheimer equations are used to describe the dynamics of fluid flows in porous media when Darcy's law is not applicable. In this article, we consider the generalized Forchheimer flows for slightly compressible fluids and…

偏微分方程分析 · 数学 2014-05-28 Luan T. Hoang , Thinh T. Kieu , Tuoc V. Phan

By using a general version of curvature condition, derivative inequalities are established for a large class of subelliptic diffusion semigroups. As applications, the Harnack/cost-entropy/cost-variance inequalities for the diffusion…

概率论 · 数学 2012-03-13 Feng-Yu Wang

When mean curvature flow evolves non-uniquely, the flow is said to fatten. The work of Ilmanen shows that any weak MCF is supported inside the fattening, and work of Hershkovits--White identified canonical weak flows supported on the…

偏微分方程分析 · 数学 2025-10-10 J. M. Daniels-Holgate

We consider the inverse mean curvature flow in smooth Riemannian manifolds of the form $([R_{0},\infty)\times S^n,\bar{g})$ with metric $\bar{g}=dr^2+{\vartheta}^2(r){\sigma}$ and non-positive radial sectional curvature. We prove, that for…

微分几何 · 数学 2017-01-18 Julian Scheuer

We study the problem of prescribing the Gaussian curvature on the disk and the geodesic curvature on its boundary via a conformal change of the metric. In this paper the case of negative Gaussian curvature is treated, a regime for which the…

偏微分方程分析 · 数学 2026-02-18 Rafael López-Soriano , Francisco J. Reyes-Sánchez , David Ruiz

We consider a fully nonlinear parabolic equation with nonlinear Neumann type boundary condition, and show that the longtime existence and convergence of the flow. Finally we apply this study to the boundary value problem for minimal…

偏微分方程分析 · 数学 2016-06-14 R. L. Huang

The most used form of the Shallow Water Equations doesn't take into account the variation of the curvature of the base flow surface. In this paper, we compare the theoretical and numerical solutions of the standard model and with the…

流体动力学 · 物理学 2023-04-25 Stelian Ion , Dorin Marinescu , Stefan Gicu Cruceanu

We show that the scalar curvature is uniformly bounded for the normalized Kahler-Ricci flow on a Kahler manifold with semi-ample canonical bundle. In particular, the normalized Kahler-Ricci flow has long time existence if and only if the…

微分几何 · 数学 2011-11-28 Jian Song , Gang Tian

We consider classical curvature flows: 1-parameter families of convex embeddings of the 2-sphere into Euclidean 3-space which evolve by an arbitrary (non-homogeneous) function of the radii of curvature. The associated flow of the radii of…

微分几何 · 数学 2020-07-14 Brendan Guilfoyle , Wilhelm Klingenberg

We study a model of a general compressible viscous fluid subject to the Coulomb friction law boundary condition. For this model, we introduce a dissipative formulation and prove the existence of dissipative solutions. The proof of this…

偏微分方程分析 · 数学 2024-02-22 Sarka Necasova , Justyna Ogorzaly , Jan Scherz

Let $F:\Sigma^n \times [0,T)\to \R^{n+m}$ be a family of compact immersed submanifolds moving by their mean curvature vectors. We show the Gauss maps $\gamma:(\Sigma^n, g_t)\to G(n, m)$ form a harmonic heat flow with respect to the…

微分几何 · 数学 2007-05-23 Mu-Tao Wang