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In this paper, we study the global existence of solutions of the Cauchy problem for a class of weakly dissipative nonlinear dispersive wave equations…

偏微分方程分析 · 数学 2026-03-24 Yiyao Lian , Zhenyu Wan , Zhaoyang Yin

In this paper we are interested in the coupled wave and Klein-Gordon equations in $\mathbb{R}^+\times\mathbb{R}^2$. We want to establish the global well-posedness of such system by showing the uniform boundedness of the energy for the…

偏微分方程分析 · 数学 2023-12-06 Xinyu Cheng

We study the equations of a two dimensional incompressible Newtonian fluid coupled with a dispersive parabolic-elliptic system on bounded domains. Global in time weak solutions are shown to exist and converge with a rate to the stationary…

偏微分方程分析 · 数学 2008-10-14 Rolf J. Ryham

In this article, we prove the existence of global weak solutions to the three-dimensional focusing energy-critical nonlinear Schr\"odinger (NLS) equation in the non-radial case. Furthermore, we prove the weak-strong uniqueness for some…

偏微分方程分析 · 数学 2026-01-30 Xing Cheng , Chang-Yu Guo , Yunrui Zheng

This paper is devoted to the full system of incompressible liquid crystals, as modeled in the Q-tensor framework. The main purpose is to establish the uniqueness of weak solutions in a two dimensional setting, without imposing an extra…

偏微分方程分析 · 数学 2016-03-11 Francesco De Anna , Arghir Zarnescu

We introduce an integrable two-component extension of the general heavenly equation and prove that the solutions of this extension are in one-to-one correspondence with 4-dimensional hyper-para-Hermitian metrics. Furthermore, we demonstrate…

微分几何 · 数学 2024-02-19 Wojciech Kryński , Artur Sergyeyev

This paper is devoted to the study of the existence and uniqueness of global admissible conservative weak solutions for the periodic single-cycle pulse equation. We first transform the equation into an equivalent semilinear system by…

偏微分方程分析 · 数学 2020-12-24 Yingying Guo , Zhaoyang Yin

We prove the existence of global-in-time weak solutions to a version of the parabolic-parabolic Keller-Segel system in one spatial dimension. If the coupling of the system is suitably weak, we prove convergence of those solutions to the…

偏微分方程分析 · 数学 2015-08-11 Jonathan Zinsl

In this paper, we study the nonlinear Vlasov-Fokker-Planck equation with fixed collision frequency. We establish the global-in-time existence of weak solutions to the equation with large initial data. Moreover, we show that our solution…

偏微分方程分析 · 数学 2024-07-18 Young-Pil Choi , Byung-Hoon Hwang , Yeongseok Yoo

In this paper we consider the Quantum Navier-Stokes system both in two and in three space dimensions and prove global existence of finite energy weak solutions for large initial data. In particular, the notion of weak solutions is the…

偏微分方程分析 · 数学 2021-03-30 Paolo Antonelli , Stefano Spirito

This article represents a first step towards understanding the well-posedness for the dispersive Hunter-Saxton equation. This problem arises in the study of nematic liquid crystals, and although the equation has formal similarities with the…

偏微分方程分析 · 数学 2021-05-06 Albert Ai , Ovidiu-Neculai Avadanei

The global-in-time existence of weak solutions to the barotropic compressible quantum Navier-Stokes equations with damping is proved for large data in three dimensional space. The model consists of the compressible Navier-Stokes equations…

偏微分方程分析 · 数学 2015-08-26 Alexis F. Vasseur , Cheng Yu

The main objective of this paper is to study the global strong solution of the parabolic-hyperbolic incompressible magnetohydrodynamic (MHD) model in two dimensional space. Based on Agmon, Douglis and Nirenberg's estimates for the…

偏微分方程分析 · 数学 2017-01-31 Ruikuan Liu , Jiayan Yang

We study rigidity/flexibility properties of global solutions to the thin obstacle problem. For solutions with bounded positive sets, we give a classification in terms of their expansions at infinity. For solutions with bounded contact sets,…

偏微分方程分析 · 数学 2025-05-01 Xavier Fernández-Real , Hui Yu

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

The purpose of this work is to introduce a notion of weak solution to the master equation of a potential mean field game and to prove that existence and uniqueness hold under quite general assumptions. Remarkably, this is achieved without…

最优化与控制 · 数学 2022-06-30 Alekos Cecchin , François Delarue

We consider a diffuse-interface model for two-phase incompressible viscous flows with a soluble surfactant in a bounded porous medium. This hydrodynamic system consists of a Darcy--Forchheimer equation for the seepage velocity…

偏微分方程分析 · 数学 2026-03-24 Maurizio Grasselli , Bohan Ouyang , Andrea Poiatti , Hao Wu

We study the well-posedness of a coupled Cahn-Hilliard-Stokes-Darcy system which is a diffuse-interface model for essentially immiscible two phase incompressible flows with matched density in a karstic geometry. Existence of finite energy…

偏微分方程分析 · 数学 2014-05-22 Daozhi Han , Xiaoming Wang , Hao WU

In this paper, we prove the global existence of weak solutions to the non-isothermal nematic liquid crystal system on $\mathbb T^2$, based on a new approximate system which is different from the classical Ginzburg-Landau approximation.…

偏微分方程分析 · 数学 2013-10-29 Jinkai Li , Zhouping Xin

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