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In this paper we prove rigidity results for classical solutions to the stationary 2D Euler equations in $\mathbb{R}^2$. Assuming that the velocity field has finite energy and that the stagnation set is connected, we prove that the…

偏微分方程分析 · 数学 2025-05-09 Fabio De Regibus , Francesco Esposito , David Ruiz

We consider the two-dimensional capillary-gravity water waves problem where the free surface $\Gamma_t$ intersects the bottom $\Gamma_b$ at two contact points. In our previous works \cite{MW2, MW3}, the local well-posedness for this problem…

偏微分方程分析 · 数学 2021-12-30 Mei Ming , Chao Wang

This paper considers two-dimensional steady solitary waves with constant vorticity propagating under the influence of gravity over an impermeable flat bed. Unlike in previous works on solitary waves, we allow for both internal stagnation…

偏微分方程分析 · 数学 2021-10-12 Susanna V. Haziot , Miles. H. Wheeler

We present here a survey of recent results concerning the mathematical analysis of instabilities of the interface between two incompressible, non viscous, fluids of constant density and vorticity concentrated on the interface. This…

偏微分方程分析 · 数学 2010-05-31 Claude Bardos , David Lannes

We show that given an initial vorticity which is bounded and $m$-fold rotationally symmetric for $m \ge 3$, there is a unique global solution to the 2D Euler equation on the whole plane. That is, in the well-known $L^1 \cap L^\infty$ theory…

偏微分方程分析 · 数学 2018-09-05 Tarek M. Elgindi , In-Jee Jeong

We consider the Cauchy problem for the full free boundary Euler equations in $3$d with an initial small velocity of size $O(\epsilon_0)$, in a moving domain which is initially an $O(\epsilon_0)$ perturbation of a flat interface. We assume…

偏微分方程分析 · 数学 2025-07-10 Daniel Ginsberg , Fabio Pusateri

In this paper we prove full local well-posedness for the Cauchy problem for the compressible 3D Euler equation, i.e. local existence, uniqueness, and continuous dependence on initial data, with initial velocity, density and vorticity…

偏微分方程分析 · 数学 2026-02-05 Lars Andersson , Huali Zhang

In this paper we consider two-dimensional, stratified, steady water waves propagating over an impermeable flat bed and with a free surface. The motion is assumed to be driven by capillarity (that is, surface tension) on the surface and a…

偏微分方程分析 · 数学 2009-11-10 Samuel Walsh

We prove the uniqueness and finite-time existence of bounded-vorticity solutions to the 2D Euler equations having velocity growing slower than the square root of the distance from the origin, obtaining global existence for more slowly…

偏微分方程分析 · 数学 2017-09-22 Elaine Cozzi , James P. Kelliher

We consider the one-phase Muskat problem modeling the dynamics of the free boundary of a single fluid in porous media. We prove local well-posedness for fluid interfaces that are general curves and can have singularities. In particular, the…

偏微分方程分析 · 数学 2021-12-14 Siddhant Agrawal , Neel Patel , Sijue Wu

This paper proposes a new general methodology for finite-time singularity formation for moving interface problems involving the incompressible Euler equations in the plane. The first problem considered is the two-phase Euler vortex sheets…

偏微分方程分析 · 数学 2017-09-04 Daniel Coutand

In this paper we construct periodic capillarity-gravity water waves with an arbitrary bounded vorticity distribution. This is achieved by reexpressing, in the height function formulation of the water wave problem, the boundary condition…

偏微分方程分析 · 数学 2015-06-18 Anca-Voichita matioc , Bogdan-Vasile Matioc

In this article, we develop the local Cauchy theory for the gravity water waves system, for rough initial data which do not decay at infinity. We work in the context of $L^2$-based uniformly local Sobolev spaces introduced by Kato. We prove…

偏微分方程分析 · 数学 2014-04-17 Thomas Alazard , Nicolas Burq , Claude Zuily

This article is concerned with the incompressible, infinite depth water wave equation in two space dimensions, with gravity and constant vorticity but with no surface tension. We consider this problem expressed in position-velocity…

偏微分方程分析 · 数学 2018-10-31 Mihaela Ifrim , Daniel Tataru

We study the Cauchy problem for the $3D$ compressible Euler equations under an arbitrary equation of state with positive speed of sound, aside from that of a Chaplygin gas. For open sets of smooth initial data with non-trivial vorticity and…

偏微分方程分析 · 数学 2022-07-15 Leo Abbrescia , Jared Speck

We consider the angle $\theta$ of inclination (with respect to the horizontal) of the profile of a steady 2D inviscid symmetric periodic or solitary water wave subject to gravity. Although $\theta$ may surpass 30$^\circ$ for some…

偏微分方程分析 · 数学 2016-07-26 Walter A. Strauss , Miles H. Wheeler

In this paper, we study the solitary wave and the Cauchy problem for Half-wave-Schr\"{o}dinger equations in the plane. First, we show the existence and orbital stability of the ground states. Secondly, we prove that traveling waves exist…

偏微分方程分析 · 数学 2018-10-03 Yakine Bahri , Slim Ibrahim , Hiroaki Kikuchi

The goal of this monograph is to prove that any solution of the Cauchy problem for the capillarity-gravity water waves equations, in one space dimension, with periodic, even in space, initial data of small size $\epsilon$, is almost…

偏微分方程分析 · 数学 2017-02-28 Massimiliano Berti , Jean-Marc Delort

By establishing a sharp Strichartz estimate for the velocity and density, we prove the local well-posedness of solutions for the Cauchy problem of two-dimensional compressible Euler equations, where the initial velocity, density, and…

偏微分方程分析 · 数学 2025-05-27 Huali Zhang

This paper is devoted to the stabilization of the incompressible Euler equation with free surface. We study the damping of two-dimensional gravity waves by an absorbing beach where the water-wave energy is dissipated by using the variations…

偏微分方程分析 · 数学 2016-03-30 Thomas Alazard