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PreprintCC BY 4.0arXiv

Generalized Logarithmic Sobolev inequalities on Bounded Domains and exponential decay to Boltzmann states for Nernst--Planck--Navier--Stokes systems

  • Elie Abdo
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Abstract

We derive logarithmic Sobolev inequalities on bounded domains for nonnegative functions that are prescribed on a portion of the boundary, and for Boltzmann-weighted reference measures. We use them to address the long-time dynamics of the Nernst--Planck--Navier--Stokes system with Dirichlet, blocking and mixed boundary conditions for the ionic concentrations and a Dirichlet--Neumann boundary condition for the electric potential. We prove that solutions converge exponentially fast to the Boltzmann steady states. When at least one species of each sign of valence is in contact with a reservoir, the asymptotic rate of convergence is independent of the dielectric constant and depends only on the domain, the boundary data, the masses of the blocked species, the valences, the diffusion coefficients, and the fluid viscosity.

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Cite

BibTeXRIS
BibTeX
@misc{abdo2026generalized,
  title = {{Generalized Logarithmic Sobolev inequalities on Bounded Domains and exponential decay to Boltzmann states for Nernst--Planck--Navier--Stokes systems}},
  author = {Elie Abdo},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.24756},
  eprint = {2610.24756},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.24756},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Generalized Logarithmic Sobolev inequalities on Bounded Domains and exponential decay to Boltzmann states for Nernst--Planck--Navier--Stokes systems
AU  - Elie Abdo
PY  - 2026
DA  - 2026/10/17
PB  - arXiv
DO  - 10.48550/arxiv.2610.24756
UR  - https://arxiv.org/abs/2610.24756
AB  - We derive logarithmic Sobolev inequalities on bounded domains for nonnegative functions that are prescribed on a portion of the boundary, and for Boltzmann-weighted reference measures. We use them to address the long-time dynamics of the Nernst--Planck--Navier--Stokes system with Dirichlet, blocking and mixed boundary conditions for the ionic concentrations and a Dirichlet--Neumann boundary condition for the electric potential. We prove that solutions converge exponentially fast to the Boltzmann steady states. When at least one species of each sign of valence is in contact with a reservoir, the asymptotic rate of convergence is independent of the dielectric constant and depends only on the domain, the boundary data, the masses of the blocked species, the valences, the diffusion coefficients, and the fluid viscosity.
ER  -