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We are concerned with the suitability of the main models of compressible fluid dynamics for the Lighthill problem for shock diffraction by a convex corned wedge, by studying the regularity of solutions of the problem, which can be…

偏微分方程分析 · 数学 2020-03-12 Gui-Qiang Chen , Mikhail Feldman , Jingchen Hu , Wei Xiang

We prove the existence of global weak entropy solutions for a class of non-symmetric Keyfitz-Kranzer type systems that includes lubrication models for thin-film flow. We identify a family of entropy/entropy-flux pairs for these first-order…

偏微分方程分析 · 数学 2026-04-20 Rahul Barthwal , Philipp Öffner , Christian Rohde

In this paper, we establish the existence and instability of standing wave for a system of nonlinear Schr\"{o}dinger equations arising in the two-wave model with quadratic interaction in higher space dimensions under mass resonance…

偏微分方程分析 · 数学 2023-07-04 Zaihui Gan , Yue Wang

We prove a global existence theorem for the $3\times 3$ system of relativistic Euler equations in one spacial dimension. It is shown that in the ultra-relativistic limit, there is a family of equations of state that satisfy the second law…

偏微分方程分析 · 数学 2007-05-23 Brian D. Wissman

We are concerned with the low regularity of self-similar solutions of two-dimensional Riemann problems for the isentropic Euler system. We establish a general framework for the analysis of the local regularity of such solutions for a class…

偏微分方程分析 · 数学 2026-02-27 Gui-Qiang G. Chen , Mikhail Feldman , Wei Xiang

In this paper, we study the Cauchy problem of the isentropic compressible magnetohydrodynamic equations in $\mathbb{R}^{3}$. When $(\gamma-1)^{\frac{1}{6}}E_{0}^{\frac{1}{2}}$, together with the $\|H_{0}\|_{L^{2}}$, is suitably small, a…

偏微分方程分析 · 数学 2015-03-12 Guangyi Hong , Xiaofeng Hou , Hongyun Peng , Changjiang Zhu

In this paper, we consider the Cauchy problem for semi-linear wave equations with structural damping term $\nu (-\Delta)^2 u_t$, where $\nu >0$ is a constant. As being mentioned in [8,10], the linear principal part brings both the diffusion…

偏微分方程分析 · 数学 2021-02-11 Tuan Anh Dao , Hiroshi Takeda

The initial boundary value problem for a system of viscoelastic wave equations of Kirchhoff type with strong damping is considered. We prove that, under suitable assumptions on relaxation functions and certain initial data, the decay rate…

偏微分方程分析 · 数学 2012-05-08 Gang Li , Linghui Hong , Wenjun Liu

We study solutions of the 2D Ginzburg-Landau equation -\Delta u+\frac{1}{\ve^2}u(|u|^2-1)=0 subject to "semi-stiff" boundary conditions: the Dirichlet condition for the modulus, |u|=1, and the homogeneous Neumann condition for the phase.…

偏微分方程分析 · 数学 2007-12-10 L. Berlyand , V. Rybalko

Existence of stationary point vortices solution to the damped and stochastically driven Euler's equation on the two dimensional torus is proved, by taking limits of solutions with finitely many vortices. A central limit scaling is used to…

概率论 · 数学 2019-01-23 Francesco Grotto

We consider the periodic problem for two-fluid non-isentropic Euler-Maxwell systems in plasmas. By means of suitable choices of symmetrizers and an induction argument on the order of the time-space derivatives of solutions in energy…

偏微分方程分析 · 数学 2018-08-15 Yue-Hong Feng , Xin Li , Shu Wang

We are concerned with global weak solutions to the isentropic compressible Euler equations with cylindrically symmetric rotating structure, in which the origin is included. Due to the presence of the singularity at the origin, only the case…

偏微分方程分析 · 数学 2020-06-03 Difan Yuan

For the physical vacuum free boundary problem of the damped compressible Euler equations in both 2D and 3D, we prove the global existence of smooth solutions and justify their time-asymptotic equivalence to the corresponding Barenblatt…

偏微分方程分析 · 数学 2025-11-06 Huihui Zeng

The purpose of this work is to investigate the Cauchy problem of global-in-time existence of large strong solutions to the Navier-Stokes equations for compressible viscous and heat conducting fluids. A class of density-dependent viscosity…

偏微分方程分析 · 数学 2024-12-04 Yachun Li , Peng Lu , Zhaoyang Shang , Shaojun Yu

In this paper, we study the global wellposedness of a radiation hydrodynamics model with viscosity and thermal conductivity. It is now well-understood that, unlike the compressible Euler equations whose smooth solutions must blow up in…

偏微分方程分析 · 数学 2022-06-13 Junhao Zhang , Huijiang Zhao

We study the global existence and uniqueness of classical solutions to the three-dimensional compressible isentropic Navier-Stokes equations with vacuum and external potential forces which could be arbitrarily large provided the initial…

偏微分方程分析 · 数学 2011-11-10 Jing Li , Jianwen Zhang , Junning Zhao

This paper is concerned with the global well-posedness of a chemotaxis-Euler system in bounded domains of $\mathbb{R}^2$. Completing the system with physical boundary conditions, we show that the corresponding initial boundary value problem…

偏微分方程分析 · 数学 2026-05-08 Qianqian Hou

We construct a family of steady solutions to the two-dimensional incompressible Euler equation in a general bounded domain, such that the vorticity is supported in two well-separated regions of small diameter and converges to a pair of…

偏微分方程分析 · 数学 2023-01-19 Guodong Wang , Bijun Zuo

We perform a linear and entropy stability analysis for wall boundary condition procedures for discontinuous Galerkin spectral element approximations of the compressible Euler equations. Two types of boundary procedures are examined. The…

数值分析 · 数学 2024-12-20 Florian J. Hindenlang , Gregor J. Gassner , David A. Kopriva

We show that the Euler system of gas dynamics in $\mathbb{R}^d$, $d=2,3$, with positive far field density and arbitrary far field entropy, admits infinitely many steady solutions with compactly supported velocity. The same proof yields a…

偏微分方程分析 · 数学 2020-12-14 Francesco Fanelli , Eduard Feireisl