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In this contribution we describe the role of several two-component integrable systems in the classical problem of shallow water waves. The starting point in our derivation is the Euler equation for an incompressible fluid, the equation of…

可精确求解与可积系统 · 物理学 2024-10-14 Rossen I. Ivanov

We consider solutions to the 2d Navier-Stokes equations on $\mathbb{T}\times\mathbb{R}$ close to the Poiseuille flow, with small viscosity $\nu>0$. Our first result concerns a semigroup estimate for the linearized problem. Here we show that…

偏微分方程分析 · 数学 2020-08-26 Michele Coti Zelati , Tarek M. Elgindi , Klaus Widmayer

In this paper, we consider the Cauchy problem for an inviscid compressible Oldroyd-B model in three dimensions. The global well posedness of strong solutions and the associated time-decay estimates in Sobolev spaces are established near an…

偏微分方程分析 · 数学 2021-07-16 Sili Liu , Wenjun Wang , Huanyao Wen

The main goal in this work is to prove the exponential decay of the semigroup associated with a thermoelastic system composed of an Euler-Bernoulli type equation that models the transverse oscillation of a homogeneous microbeam with axial…

偏微分方程分析 · 数学 2021-10-04 Roberto Díaz , Octavio Vera , Nicolás Zumelzu

In this paper, we are concerned with long time behavior of the strong solutions to the 2-D compressible Oldroyd-B and Hall-MHD model. By virtue of the improved Fourier splitting method and the time weighted energy estimate, we obtain the…

偏微分方程分析 · 数学 2023-07-11 Zhaonan Luo , Wei Luo , Zhaoyang Yin

We consider the compressible Euler equation with a Coriolis term and prove a lower bound on the time of existence of solutions in terms of the speed of rotation, sound speed and size of the initial data. Along the way, we obtain precise…

偏微分方程分析 · 数学 2026-04-13 Haram Ko , Benoit Pausader , Ryo Takada , Klaus Widmayer

Many physical phenomena may be modelled by first order hyperbolic equations with degenerate dissipative or diffusive terms. This is the case for example in gas dynamics, where the mass is conserved during the evolution, but the momentum…

偏微分方程分析 · 数学 2022-09-27 Raphaël Danchin

This paper is devoted to the analysis of the incompressible Euler equation in a time-dependent fluid domain, whose interface evolution is governed by the law of linear elasticity. Our main result asserts that the Cauchy problem is globally…

偏微分方程分析 · 数学 2025-04-02 Thomas Alazard , Chengyang Shao , Haocheng Yang

In the context of the M\"uller-Israel-Stewart second-order theory for dissipative fluids due to Grad, we analyze the effects of thermal conduction and viscosity in heavy ion collisions. We contrast the results to those of the first-order…

核理论 · 物理学 2008-11-26 Azwinndini Muronga

This paper concerns supersonic flows with nonzero vorticity governed by the steady Euler-Poisson system, under the coupled effects of the electric potential and the geometry of a convergent nozzle. By the coordinate rotation, the existence…

偏微分方程分析 · 数学 2026-05-01 Yuanyuan Xing , Zihao Zhang

The compressible Navier-Stokes-Poisson system takes the form of usual Navier-Stokes equations coupled with the self-consistent Poisson equation, which is used to simulate the transport of charged particles under the electric field of…

偏微分方程分析 · 数学 2018-05-30 Wei Xuan Shi , Jiang Xu

A new framework to obtain time-decay estimates for partially dissipative hyperbolic systems set on the real line is developed. Under the classical Shizuta-Kawashima (SK) stability condition, equivalent to the Kalman rank condition in…

偏微分方程分析 · 数学 2024-04-09 Timothée Crin-Barat , Ling-Yun Shou , Enrique Zuazua

The main objects of the present work are the quantum Navier-Stokes and quantum Euler systems; for the first one, in particular, we will consider constant viscosity coefficients. We deal with the concept of dissipative solutions, for which…

偏微分方程分析 · 数学 2022-03-23 Danica Basarić , Tong Tang

We examine the two-dimensional Euler equations including the local energy (in)equality as a differential inclusion and show that the associated relaxation essentially reduces to the known relaxation for the Euler equations considered…

偏微分方程分析 · 数学 2022-09-02 Björn Gebhard , József J. Kolumbán

Recently the barotropic two fluid model belonging to the class of \emph{symmetric hyperbolic thermodynamically compatible} (SHTC) systems was studied in detail in \cite{Thein2022}. There the question was raised whether the dissipative…

偏微分方程分析 · 数学 2024-01-26 Ferdinand Thein

Under specific experimental circumstances, sputter erosion on semiconductor materials exhibits highly ordered hexagonal dot-like nanostructures. In a recent attempt to theoretically understand this pattern forming process, Facsko et al.…

材料科学 · 物理学 2009-11-11 Sebastian Vogel , Stefan J. Linz

Danchin and He (Math. Ann. 64: 1-38, 2016) recently established the global existence in critical $L^p$-type regularity framework for the $N$-dimensional $(N\geq 3)$ non-isentropic compressible Navier-Stokes equations. The purpose of this…

偏微分方程分析 · 数学 2020-02-14 Qunyi Bie , Qiru Wang , Zheng-an Yao

We consider the evolution of an incompressible two-dimensional perfect fluid as the boundary of its domain is deformed in a prescribed fashion. The flow is taken to be initially steady, and the boundary deformation is assumed to be slow…

偏微分方程分析 · 数学 2007-05-23 J. Vanneste , D. Wirosoetisno

Although the numerical results suggest the optimal convergence order of the two-grid finite element decoupled scheme for mixed Stokes-Darcy model with Beaver-Joseph-Saffman interface condition in literatures, the numerical analysis only get…

数值分析 · 数学 2016-02-08 Yanren Hou

In this paper, we investigate a generic compressible two-fluid model with common pressure ($P^+=P^-$) in $\mathbb{R}^3$. Under some smallness assumptions, Evje-Wang-Wen [Arch Rational Mech Anal 221:1285--1316, 2016] obtained the global…

偏微分方程分析 · 数学 2022-04-25 Guochun Wu , Lei Yao , Yinghui Zhang