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In this paper, we study non-Newtonian fluids in a class of unbounded domains with noncompact boundaries. With respect to the resulting mathematical problems, we establish the global existence of solutions with arbitrary large flux under…

偏微分方程分析 · 数学 2016-11-24 Jiaqi Yang , Huicheng Yin

The classical irrotational capillary-gravity water wave problem described by the Euler equations with a nonlinear free surface boundary condition over a flat bed is considered. A modified flow force has been defined and a new formulation of…

偏微分方程分析 · 数学 2020-10-20 Biswajit Basu , Calin Iulian Martin

We consider strictly convex hypersurfaces which are evolving by the non-parametric logarithmic Gauss curvature flow subject to a Neumann boundary condition. Solutions are shown to converge smoothly to hypersurfaces moving by translation. In…

偏微分方程分析 · 数学 2007-05-23 Oliver C. Schnuerer , Hartmut R. Schwetlick

In this paper, we consider the anisotropic $\alpha$-Gauss curvature flow for complete noncompact convex hypersurfaces in the Euclidean space with the anisotropy determined by a smooth closed uniformly convex Wulff shape. We show that for…

微分几何 · 数学 2024-04-17 Shujing Pan , Yong Wei

We consider compressible fluid flow on an evolving surface with a piecewise Lipschitz-continuous boundary from an energetic point of view. We employ both an energetic variational approach and the first law of thermodynamics to make a…

数学物理 · 物理学 2022-12-20 Hajime Koba

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

A compact and efficient numerical method is described for studying plane flows of an ideal fluid with a smooth free boundary over a curved and nonuniformly moving bottom. Exact equations of motion in terms of the so-called conformal…

流体动力学 · 物理学 2020-07-01 Victor P. Ruban

We consider a flow by powers of Gauss curvature under the obstruction that the flow cannot penetrate a prescribed region, so called an obstacle. For all dimensions and positive powers, we prove the optimal curvature bounds of solutions and…

微分几何 · 数学 2023-10-05 Ki-Ahm Lee , Taehun Lee

We study capillary-gravity surface waves for fluid flows governed by Darcy's law. This includes flows in vertical Hele-Shaw cells and in porous media (the one-phase Muskat problem) with finite or infinite depth. The free boundary is acted…

偏微分方程分析 · 数学 2026-02-20 Huy Q. Nguyen

This work introduces the framed curvature flow, a generalization of both the curve shortening flow and the vortex filament equation. Here, the magnitude of the velocity vector is still determined by the curvature, but its direction is given…

微分几何 · 数学 2024-09-02 Jiří Minarčík , Michal Beneš

Giving explicit parametrizations of discrete constant Gaussian curvature surfaces of revolution that are defined from an integrable systems approach, we study Ricci flow for discrete surfaces, and see how discrete surfaces of revolution…

微分几何 · 数学 2023-12-14 Naoya Suda

In this article, we first introduce a Gauss curvature type flow for capillary hypersurfaces, which we call capillary Gauss curvature flow. We then show that the flow will shrink to a point in finite time. This is a capillary counterpart (or…

微分几何 · 数学 2025-06-12 Xinqun Mei , Guofang Wang , Liangjun Weng

The aim of this work is to investigate gravity-capillary waves resonantly excited by two topographic obstacles in a shallow water channel. By considering the weakly nonlinear regime the forced fifth-order Korteweg-de Vries equation arises…

流体动力学 · 物理学 2021-03-09 Marcelo V. Flamarion , Roberto Ribeiro-Jr

We consider contracting and expanding curvature flows in $\Ss$. When the flow hypersurfaces are strictly convex we establish a relation between the contracting hypersurfaces and the expanding hypersurfaces which is given by the Gau{\ss}…

微分几何 · 数学 2025-07-18 Claus Gerhardt

We construct global curves of rotational traveling wave solutions to the $2D$ water wave equations on a compact domain. The real analytic interface is subject to surface tension, while gravitational effects are ignored. In contrast to the…

偏微分方程分析 · 数学 2024-07-25 Gary Moon , Yilun Wu

We study the mean curvature flow of complete space-like submanifolds in pseudo-Euclidean space with bounded Gauss image, as well as that of complete submanifolds in Euclidean space with convex Gauss image. By using the confinable property…

微分几何 · 数学 2007-05-23 Y. L. Xin

In this paper, we study the deformation of the 2 dimensional convex surfaces in $\R^{3}$ whose speed at a point on the surface is proportional to $\alpha$-power of positive part of Gauss Curvature. First, for 1/2<\alpha\leq 1$, we show that…

偏微分方程分析 · 数学 2011-10-03 Lami Kim , Ki-ahm Lee , Eunjai Rhee

We address the asymptotic behavior of the $\alpha$-Gauss curvature flow, for $\alpha >1/2$, with initial data a complete non-compact convex hypersurface which is contained in a cylinder of bounded cross section. We show that the flow…

微分几何 · 数学 2022-01-13 Beomjun Choi , Kyeongsu Choi , Panagiota Daskalopoulos

In this paper a generalized Gauss curvature flow about a convex hypersurface in the Euclidean $n$-space is studied. This flow is closely related to the Orlicz-Minkowski problem, which involves Gauss curvature and a function of support…

偏微分方程分析 · 数学 2020-05-07 YanNan Liu , Jian Lu

On a closed Riemannian surface $(M,\bar g)$ with negative Euler characteristic, we study the problem of finding conformal metrics with prescribed volume $A>0$ and the property that their Gauss curvatures $f_\lambda= f + \lambda$ are given…

偏微分方程分析 · 数学 2023-09-20 Franziska Borer , Peter Elbau , Tobias Weth
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