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In this paper, we consider the existence of global weak solutions to a one dimensional fluid-particles interaction model: inviscid Burgers-Vlasov equations with fluid velocity in $L^\infty$ and particles' probability density in $L^1$. Our…

偏微分方程分析 · 数学 2020-06-09 Huimin Yu , Wentao Cao

We establish the global existence of a class of weak solutions to the isentropic compressible Navier-Stokes and magnetohydrodynamic (MHD) equations on the whole plane under a suitably small initial energy. The solutions constructed here…

偏微分方程分析 · 数学 2026-02-09 Shuai Wang , Xin Zhong

The aim of this article is to study a Cahn-Hilliard model for a multicomponent mixture with cross-diffusion effects, degenerate mobility and where only one of the species does separate from the others. We define a notion of weak solution…

偏微分方程分析 · 数学 2020-07-03 Virginie Ehrlacher , Greta Marino , Jan-Frederik Pietschmann

We consider weak solutions to a two-dimensional simplified Ericksen-Leslie system of compressible flow of nematic liquid crystals. An initial-boundary value problem is first studied in a bounded domain. By developing new techniques and…

偏微分方程分析 · 数学 2013-08-13 Fei Jiang , Song Jiang , Dehua Wang

We consider the Cauchy problem for a damped Euler-Maxwell system with no ionic background. For smooth enough data satisfying suitable so-called dispersive conditions, we establish the global in time existence and uniqueness of a strong…

偏微分方程分析 · 数学 2024-02-02 Bernard Ducomet , Šárka Nečasová , John Sebastian H. Simon

We consider the variational wave equation in one-dimensional space with stochastic forcing by an additive noise. Blow-up of local smooth solutions is established, and global existence is proved in the class of weak martingale solutions.

偏微分方程分析 · 数学 2024-09-30 Billel Guelmame , Julien Vovelle

In this paper, we study the initial value problem of a Boltzmann type equation with a nonlinear degenerate damping. We prove the existence of global weak solutions with large initial data, in three dimensional space. We rely on a variant…

偏微分方程分析 · 数学 2016-04-08 Cheng Yu

We establish the global existence of weak solutions of the isentropic compressible magnetohydrodynamic equations with ripped density in the whole plane provided the bulk viscosity coefficient is properly large. Moreover, we show that such…

偏微分方程分析 · 数学 2025-10-31 Shuai Wang , Guochun Wu , Xin Zhong

We consider a model for an incompressible visoelastic fluid. It consists of the Navier-Stokes equations involving an elastic term in the stress tensor and a transport equation for the evolution of the deformation gradient. The novel feature…

偏微分方程分析 · 数学 2019-10-23 Martin Kalousek

We establish an existence result for globally continuous weak solutions to elliptic equations of the $p$-Poisson type. This result significantly improves Theorem 8.30 in Gilbarg-Trudinger (1983) and offers a novel contribution for the…

偏微分方程分析 · 数学 2025-05-15 Takanobu Hara

Global existence of weak solutions to the Navier-Stokes equation in a cylindrical domain under the slip boundary conditions and with inflow and outflow was proved. To prove the energy estimate, crucial for the proof, we use the Hopf…

偏微分方程分析 · 数学 2010-09-30 Joanna Renclawowicz , Wojciech Zajaczkowski

In this paper the global existence of weak solutions to the relativistic BGK model for the relativistic Boltzmann equation is analyzed. The proof relies on the strong compactness of the density, velocity and temperature under minimal…

偏微分方程分析 · 数学 2019-02-21 Juan Calvo , Pierre-Emmanuel Jabin , Juan Soler

We study a general convergence theory for the numerical solutions of compressible viscous and electrically conducting fluids with a focus on numerical schemes that preserve the divergence free property of magnetic field exactly. Our…

数值分析 · 数学 2021-07-06 Yang Li , Bangwei She

This paper is concerned with the weak solution theory for the MHD system with large $L^3$-initial data. Due to the fact that the natural boundary condition on the magnetic field $H$ is the slip boundary condition, the Leray-Schauder…

偏微分方程分析 · 数学 2026-02-10 Baishun Lai , Ge Tang , Ziying Xu

We prove the global existence of finite energy weak solutions to the general liquid crystals system. The problem is studied in bounded domain of $R^3$ with Dirichlet boundary conditions and the whole space $R^3$.

偏微分方程分析 · 数学 2013-05-30 Yu-ming Chu , Yi-hang Hao , Xian-gao Liu

We prove the existence of global weak solutions with finite energy to some two-fluid systems with magnetic field and the results suit for corresponding two-fluid systems. The proof method is mainly inspired by Novotn\'y et al. and Vasseur…

偏微分方程分析 · 数学 2021-11-09 Lin Ma , Boling Guo , Jie Shao

In this paper we study the Cauchy problem for the Landau Hamiltonian wave equation, with time dependent irregular (distributional) electromagnetic field and similarly irregular velocity. For such equations, we describe the notion of a `very…

偏微分方程分析 · 数学 2017-05-05 Michael Ruzhansky , Niyaz Tokmagambetov

In this paper, we extend considerably the global existence results of entropy-weak solutions related to compressible Navier-Stokes system with density dependent viscosities obtained, independently (using different strategies), by Vasseur-Yu…

偏微分方程分析 · 数学 2019-05-08 Didier Bresch , Alexis Vasseur , Cheng Yu

Let $M$ be a compact Riemannian homogeneous space (e.g. a Euclidean sphere). We prove existence of a global weak solution of the stochastic wave equation \mathbf D_t\partial_tu=\sum_{k=1}^d\mathbf…

概率论 · 数学 2016-08-14 Zdzisław Brzeźniak , Martin Ondreját

We consider the compressible Ericksen-Leslie system of liquid crystal flows in one dimension. A global weak solution is constructed with initial density $\rho_0\geq 0$ and $\rho_0\in L^\gamma$ for $\gamma>1$.

偏微分方程分析 · 数学 2020-06-18 Huajun Gong , Tao Huang , Changyou Wang