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We study a nonlinear system coupling the Darcy-Forchheimer-Brinkman equations with a convection-diffusion-reaction equation, arising in reactive transport through porous media. The model features a nonlinear viscosity coupling, Forchheimer…

偏微分方程分析 · 数学 2026-01-27 Sahil Kundu , Manmohan Vashisth , Manoranjan Mishra

Under a natural stability condition on the pressure, it is known that for small irrotational initial data, the solutions of the Euler-Korteweg system are global in time. When the initial velocity has a small rotational part, we obtain a…

偏微分方程分析 · 数学 2019-06-05 Corentin Audiard

We consider Navier-Stokes equations for compressible viscous fluids in the one-dimensional case with general viscosity coefficients. We prove the existence of global weak solution when the initial momentum $\rho_0 u_0$ belongs to the set of…

偏微分方程分析 · 数学 2019-01-11 Boris Haspot

For periodic initial data with the density allowing vacuum, we establish the global existence and exponential decay of weak, strong and classical solutions to the two-dimensional(2D) compressible Navier-Stokes equations when the bulk…

偏微分方程分析 · 数学 2025-07-03 Qinghao Lei , Chengfeng Xiong

We consider the compressible Poisson-Nernst-Planck-Navier-Stokes (PNPNS) system of equations, governing the transport of charged particles under the influence of the self-consistent electrostatic potential, in a three-dimensional bounded…

偏微分方程分析 · 数学 2024-10-03 Daniel Marroquin , Dehua Wang

This paper concerns the barotropic compressible Navier-Stokes equations in a two-dimensional half-space subject to Navier-slip boundary conditions with vacuum or non-vacuum far-field density. The global existence and large-time behavior of…

偏微分方程分析 · 数学 2026-05-29 Qinghao Lei , Weirong Liang

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

For periodic initial data with initial density allowed to vanish, we establish the global existence of strong and weak solutions for the two-dimensional compressible Navier-Stokes equations with no restrictions on the size of initial data…

偏微分方程分析 · 数学 2012-06-19 Xiangdi Huang , Jing Li

We establish some conditional uniqueness of weak solutions to the viscous primitive equations, and as an application, we prove the global existence and uniqueness of weak solutions, with the initial data taken as small $L^\infty$…

偏微分方程分析 · 数学 2015-12-03 Jinkai Li , Edriss S. Titi

This paper gives the first affirmative answer to the question of the global existence of Boltzmann equations without angular cutoff in the $L^\infty$-setting. In particular, we show that when the initial data is close to equilibrium and the…

偏微分方程分析 · 数学 2021-10-12 R. Alonso , Y. Morimoto , W. Sun , T. Yang

We prove the existence of global $L^2$ weak solutions for a family of generalized inviscid surface-quasi geostrophic (SQG) equations in bounded domains of the plane. In these equations, the active scalar is transported by a velocity field…

偏微分方程分析 · 数学 2018-03-16 Huy Quang Nguyen

As explained in detail in the prologue to this manuscript, boundedness of weak solutions for general classes of elliptic equations in divergence form is a classic tool for achieving higher regularity. We propose here some global boundedness…

偏微分方程分析 · 数学 2025-12-23 Giovanni Cupini , Paolo Marcellini

This paper establishes the global well-posedness of the Landau-Lifshitz-Baryakhtar (LLBar) equation in the whole space $\mathbb{R}^3$. The study first demonstrates the existence and uniqueness of global strong solutions using the weak…

偏微分方程分析 · 数学 2025-07-02 Fan Xu , Bin Liu

The Boltzmann equation without an angular cutoff in a three-dimensional periodic domain is considered. The global-in-time existence of solutions in a function space $ W_k^{\zeta,p}L^\infty_TL^2_v $ with $p>1$ and $\zeta>3(1-\frac{1}{p})$ is…

偏微分方程分析 · 数学 2020-10-06 Haoyu Zhang

A Boltzmann equation, used to describe the evolution of the density function of a gas of photons interacting by Compton scattering with electrons at low density and non relativistic equilibrium, is considered. A truncation of the very…

偏微分方程分析 · 数学 2019-05-22 E. Cortés , M. Escobedo

In this paper we consider the Cauchy problem on the angular cutoff Boltzmann equation near global Maxwillians for soft potentials either in the whole space or in the torus. We establish the existence of global unique mild solutions in the…

偏微分方程分析 · 数学 2021-09-03 Zongguang Li

The nonhomogeneous incompressible Magnetohydrodynamic Equations with density-dependent viscosity is studied in three-dimensional (3D) exterior domains with slip boundary conditions. The key is the constraint of an additional initial value…

偏微分方程分析 · 数学 2025-02-19 Bing Yuan , Rong Zhang , Peng Zhou

In this paper, we deal with (angular cut-off) Boltzmann equation with soft potential ($-3<\gamma<0$). In particular, we construct a unique global solution in $L^\infty_{x,v}$ which converges to global equilibrium asymptotically provided…

偏微分方程分析 · 数学 2021-11-16 Gyounghun Ko , Donghyun Lee , Kwanghyuk Park

The Chapman-Enskog method of solution of the relativistic Boltzmann equation is generalized in order to admit a time-derivative term associated to a thermodynamic force in its first order solution. Both existence and uniqueness of such a…

广义相对论与量子宇宙学 · 物理学 2008-11-26 A. L. Garcia-Perciante , A. Sandoval-Villalbazo , L. S. Garcia-Colin

This paper studies the global existence and uniqueness of strong solutions and its large-time behavior for the compressible isothermal Euler equations with a nonlocal dissipation. The system is rigorously derived from the kinetic…

偏微分方程分析 · 数学 2018-01-16 Young-Pil Choi