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A modified Poisson-Nernst-Planck system in a bounded domain with mixed Dirichlet-Neumann boundary conditions is analyzed. It describes the concentrations of ions immersed in a polar solvent and the correlated electric potential due to the…

偏微分方程分析 · 数学 2023-05-25 Ansgar Jüngel , Annamaria Massimini

We investigate a Poisson-Nernst-Planck type system in three spatial dimensions where the strength of the electric drift depends on a possibly small parameter and the particles are assumed to diffuse quadratically. On grounds of the global…

偏微分方程分析 · 数学 2015-10-23 Jonathan Zinsl

This paper analytically investigates the Darcy-Poisson-Nernst-Planck system. This system is a mathematical model for electrolyte solutions. In this paper, we consider electrolyte solutions, which consist of a neutral fluid and multiple…

偏微分方程分析 · 数学 2016-05-25 Matthias Herz , Peter Knabner

We establish the global existence of weak solutions to a nonlinear kinetic Fokker--Planck equation with degenerate diffusion, under either inflow or partial absorption-reflection boundary conditions. The novelty of our approach lies in…

偏微分方程分析 · 数学 2025-10-09 Young-Pil Choi , Sihyun Song

The Nernst-Planck-Navier-Stokes system models electrodiffusion of ions in a fluid. We prove global existence of solutions in bounded domains in three dimensions with either blocking (no-flux) or uniform selective (special Dirichlet)…

偏微分方程分析 · 数学 2020-08-25 Peter Constantin , Mihaela Ignatova , Fizay-Noah Lee

The existence of global weak solutions to a partial-differential-algebraic system is proved. The system consists of the drift-diffusion equations for the electron, hole, and oxide vacancy densities in a memristor device, the Poisson…

偏微分方程分析 · 数学 2025-07-30 Ansgar Jüngel , Tuan Tung Nguyen

The global-in-time existence of weak solutions to a spatially homogeneous multispecies Fokker-Planck-Landau system for plasmas in the three-dimensional whole space is shown. The Fokker-Planck-Landau system is a simplification of the Landau…

偏微分方程分析 · 数学 2024-01-17 Jingwei Hu , Ansgar Jüngel , Nicola Zamponi

This paper analytically investigates the Darcy-Poisson-Nernst-Planck system. This system is a mathematical model for electrolyte solutions. In this paper, we consider electrolyte solutions, which consist of a neutral fluid and two suspended…

偏微分方程分析 · 数学 2016-05-25 Matthias Herz , Peter Knabner

We consider the compressible Vlasov-Poisson-Fokker-Planck-Navier-Stokes system in a three dimensional bounded domain with nonhomogeneous Dirichlet boundary conditions. The system describes the evolution of charged particles ensemble…

偏微分方程分析 · 数学 2023-01-04 Li Chen , Fucai Li , Yue Li , Nicola Zamponi

In this paper, we study the well-posedness of Poisson-Nernst-Planck system with no-flux boundary condition and singular permanent charges in two dimension. The main difficulty comes from the lack of integrability of singular permanent…

偏微分方程分析 · 数学 2021-10-14 Chia-Yu Hsieh , Yong Yu

We consider a coupled system of Navier-Stokes and Nernst-Planck equations, describing the evolution of the velocity and the concentration fields of dissolved constituents in an electrolyte solution. Motivated by recent applications in the…

偏微分方程分析 · 数学 2012-06-12 Dieter Bothe , André Fischer , Jürgen Saal

The global in time existence of weak solutions to a cross-diffusion system with fractional diffusion in the whole space is proved. The equations describe the evolution of multi-species populations in the regime of large-distance…

偏微分方程分析 · 数学 2022-03-21 Ansgar Jüngel , Nicola Zamponi

In [1], the Authors rigorously establish the relaxation limit from the Quantum Navier Stokes Poisson (QNSP) system to the Quantum Drift Diffusion (QDD) equation, while providing only a brief outline of the global existence theory for weak…

偏微分方程分析 · 数学 2025-12-10 Giada Cianfarani Carnevale

We show that the Nernst-Planck-Euler system, which models ionic electrodiffusion in fluids, has global strong solutions for arbitrarily large data in the two dimensional bounded domains. The assumption on species is either there are two…

偏微分方程分析 · 数学 2022-12-27 Dapeng Du , Jingyu Li , Yansheng Ma , Ruyi Pang

In this contribution we prove the existence of weak solutions to degenerate parabolic systems arising from the coupled moisture movement, transport of dissolved species and heat transfer through partially saturated porous materials.…

偏微分方程分析 · 数学 2017-01-03 Michal Beneš , Lukáš Krupička

This work concerns the global existence of the weak solutions to a system of partial differential equations modeling the evolution of particles in the fluid. That system is given by a coupling between the standard isentropic compressible…

偏微分方程分析 · 数学 2018-06-13 Irene M. Gamba , Cheng Yu

A system modeling the electrophoretic motion of a charged rigid macromolecule immersed in a incompressible ionized fluid is considered. The ionic concentration is governing by the Nernst-Planck equation coupled with the Poisson equation for…

偏微分方程分析 · 数学 2014-02-20 Luciano Bedin , Mark Thompson

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

A mathematical model for the discrete nonlinear fragmentation (collision-induced breakage) equation with diffusion is studied. The existence of global weak solutions is established in arbitrary spatial dimensions without assuming a strictly…

偏微分方程分析 · 数学 2026-03-12 Saumyajit Das , Ram Gopal Jaiswal

The evolution of two partially miscible, nonhomogeneous, incompressible viscous fluids of non-Newtonian type, can be governed by the Navier-Stokes-Cahn-Hilliard system. In the present work, we prove the global existence of weak solutions…

偏微分方程分析 · 数学 2025-12-25 Fang Li , Duan Xingyu , Guo Zhenhua
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