Quantum chaos and dynamical systems
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Abstract
Abstract
Abstract In this paper, we analyze a three-dimensional Nernst-Planck-Boussinesq (NPB) system that describes ionic electrodiffusion in an incompressible viscous fluid. This new model incorporates variational temperature and is forced by buoyancy force stemming from temperature and salinity fluctuations, enhancing its generality and realism. The electromigration term in the NPB system displays a complex nonlinear structure influenced by the reciprocal of the temperature that distinguishes its mathematical aspects from other electrodiffusion models studied in the literature. We address the global existence of weak solutions to the NPB system on the three-dimensional torus for large initial data. In addition, we study the long-time dynamics of these weak solutions and the associated relative entropies and establish their exponential decay in time to steady states.
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@article{Abdo2026Three,
title = {On the Three-Dimensional Nernst-Planck-Boussinesq System},
author = {Elie Abdo and Ruimeng Hu and Quyuan Lin},
journal = {Annals of PDE},
year = {2026},
doi = {10.1007/s40818-026-00240-8},
url = {https://doi.org/10.1007/s40818-026-00240-8}
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