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相关论文: A pseudo-local property of gravity water waves sys…

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We prove the existence of small amplitude time quasi-periodic solutions of the pure gravity water waves equations with constant vorticity, for a bidimensional fluid over a flat bottom delimited by a space periodic free interface. Using a…

偏微分方程分析 · 数学 2021-03-02 Massimiliano Berti , Luca Franzoi , Alberto Maspero

We use radial estimates for pseudodifferential operators to describe long time evolution of solutions to $ i u_t - P u = f $ where $ P $ is a self-adjoint 0th order pseudodifferential operator satisfying hyperbolic dynamical assumptions and…

偏微分方程分析 · 数学 2019-07-31 Semyon Dyatlov , Maciej Zworski

We report the observation of intermittency in gravity-capillary wave turbulence on the surface of mercury. We measure the temporal fluctuations of surface wave amplitude at a given location. We show that the shape of the probability density…

流体动力学 · 物理学 2011-11-09 Eric Falcon , Stéphan Fauve , Claude Laroche

We study a hydrodynamic limit of the Vlasov-Navier-Stokes system with external gravity force, following the framework introduced by Han-Kwan and Michel in [Han-Kwan - Michel, arXiv:2103.06668]. We answer a question raised in the latter…

偏微分方程分析 · 数学 2023-12-05 Lucas Ertzbischoff

This article represents the first installment of a series of papers concerned with low regularity solutions for the water wave equations in two space dimensions. Our focus here is on sharp cubic energy estimates. Precisely, we introduce and…

偏微分方程分析 · 数学 2023-01-20 Albert Ai , Mihaela Ifrim , Daniel Tataru

Given any suitably small, localized, and smooth initial data, in this paper, we prove global regularity for the $3D$ finite depth gravity water wave system. As a byproduct, we rule out the small, localized traveling waves in $3D$, which do…

偏微分方程分析 · 数学 2020-02-19 Xuecheng Wang

Motivated by recent work on approximation of diffusion equations by deterministic interacting particle systems, we develop a nonlocal approximation for a range of linear and nonlinear diffusion equations and prove convergence of the method…

偏微分方程分析 · 数学 2024-04-05 Katy Craig , Matt Jacobs , Olga Turanova

This paper is devoted to the study of water waves under the influence of the gravity and the Coriolis force. It is quite common in the physical literature that the rotating shallow water equations are used to study such water waves. We…

偏微分方程分析 · 数学 2016-09-12 Benjamin Melinand

In an attempt to determine the outer scale of turbulence driven by localized sources, such as supernova explosions in the interstellar medium, we consider a forcing function given by the gradient of gaussian profiles localized at random…

天体物理学 · 物理学 2007-05-23 Antony J. Mee , Axel Brandenburg

In this paper we mainly investigate the traveling wave solution of the two dimensional Euler equations with gravity at the free surface over a flat bed. We assume that the free surface is almost periodic in the horizontal direction. Using…

偏微分方程分析 · 数学 2018-05-24 Wei Luo , Zhaoyang Yin

We consider two-dimensional steady periodic gravity waves on water of finite depth with a prescribed but arbitrary vorticity distribution. The water surface is allowed to be overhanging and no assumptions regarding the absence of stagnation…

偏微分方程分析 · 数学 2024-08-27 Erik Wahlén , Jörg Weber

In this paper we prove global regularity for the full water waves system in 3 dimensions for small data, under the influence of both gravity and surface tension. This problem presents essential difficulties which were absent in all of the…

偏微分方程分析 · 数学 2018-05-25 Y. Deng , A. D. Ionescu , B. Pausader , F. Pusateri

We prove that the initial value problem associated to a nonlocal perturbation of the Benjamin-Ono equation is locally and globally well-posed in Sobolev spaces $H^s(\mathbb{R})$ for any $s>-3/2$ and we establish that our result is sharp in…

偏微分方程分析 · 数学 2018-07-30 Germán Fonseca , Ricardo Pastrán , Guillermo Rodríguez-Blanco

In this paper we consider fundamental processes of the disturbance and propagation of internal gravity waves in the ocean modeled as a vertically stratified, horizontally non-uniform, and non-stationary medium. We develop asymptotic methods…

流体动力学 · 物理学 2013-08-20 Vitaly V. Bulatov , Yuriy V. Vladimirov

We construct a category of examples of partially hyperbolic geodesic flows which are not Anosov, deforming the metric of a compact locally symmetric space of nonconstant negative curvature. Candidates for such example as the product metric…

动力系统 · 数学 2013-03-12 Fernando A. Carneiro , Enrique R. Pujals

It is demonstrated that a standard coupled-mode theory can successfully describe weakly-nonlinear gravity water waves in Bragg resonance with a periodic one-dimensional topography. Analytical solutions for gap solitons provided by this…

流体动力学 · 物理学 2008-10-27 V. P. Ruban

We consider the global bifurcation problem for spatially periodic traveling waves for two-dimensional gravity-capillary vortex sheets. The two fluids have arbitrary constant, non-negative densities (not both zero), the gravity parameter can…

偏微分方程分析 · 数学 2014-12-30 David M. Ambrose , Walter A. Strauss , J. Douglas Wright

General phenomenological theory of hydrodynamic waves in regions with smooth loss of convexity of isentropes is developed based on the fact that for most media these regions in p-V plane are anomalously small. Accordingly the waves are…

流体动力学 · 物理学 2009-11-07 Michael I. Tribelsky , Sergei I. Anisimov

Fully localised solitary waves are travelling-wave solutions of the three-dimensional gravity-capillary water wave problem which decay to zero in every horizontal spatial direction. Their existence has been predicted on the basis of…

偏微分方程分析 · 数学 2020-07-28 Boris Buffoni , Mark D. Groves , Erik Wahlén

Vortices in electron fluids are a key indicator of electron hydrodynamics. However, a comprehensive framework linking macroscopic vorticity measurements with microscopic interactions and scattering mechanisms has been lacking. We employ…

介观与纳米尺度物理 · 物理学 2024-09-27 Khachatur G. Nazaryan , Leonid Levitov
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