A structure and asymptotic preserving scheme for the Vlasov-Poisson-Fokker-Planck model

A Blaustein, F Filbet - Journal of Computational Physics, 2024 - Elsevier
We propose a numerical method for the Vlasov-Poisson-Fokker-Planck model written as an
hyperbolic system thanks to a spectral decomposition in the basis of Hermite functions with …

Moment preserving Fourier–Galerkin spectral methods and application to the Boltzmann equation

L Pareschi, T Rey - SIAM Journal on Numerical Analysis, 2022 - SIAM
Spectral methods, thanks to their high accuracy and the possibility of using fast algorithms,
represent an effective way to approximate collisional kinetic equations in kinetic theory. On …

Hypocoercivity with Schur complements

É Bernard, M Fathi, A Levitt, G Stoltz - Annales Henri Lebesgue, 2022 - numdam.org
We propose an approach to obtaining explicit estimates on the resolvent of hypocoercive
operators by using Schur complements, rather than from an exponential decay of the …

Coercivity, hypocoercivity, exponential time decay and simulations for discrete Fokker–Planck equations

G Dujardin, F Hérau, P Lafitte - Numerische Mathematik, 2020 - Springer
In this article, we propose and study several discrete versions of homogeneous and
inhomogeneous one-dimensional Fokker–Planck equations. In particular, for these …

On a discrete framework of hypocoercivity for kinetic equations

A Blaustein, F Filbet - Mathematics of Computation, 2024 - ams.org
We propose and study a fully discrete finite volume scheme for the linear Vlasov-Fokker-
Planck equation written as an hyperbolic system using Hermite polynomials in velocity. This …

Large time behavior of nonlinear finite volume schemes for convection-diffusion equations

C Cancès, C Chainais-Hillairet, M Herda, S Krell - SIAM Journal on Numerical …, 2020 - SIAM
In this contribution we analyze the large time behavior of a family of nonlinear finite volume
schemes for anisotropic convection-diffusion equations set in a bounded bidimensional …

Discrete hypocoercivity for a nonlinear kinetic reaction model

M Bessemoulin-Chatard, T Laidin… - IMA Journal of Numerical …, 2024 - academic.oup.com
In this article we propose a finite-volume discretization of a one-dimensional nonlinear
reaction kinetic model proposed in, which describes a two-species recombination …

Study of an entropy dissipating finite volume scheme for a nonlocal cross-diffusion system

M Herda, A Zurek - ESAIM: Mathematical Modelling and Numerical …, 2023 - esaim-m2an.org
In this paper we analyse a finite volume scheme for a nonlocal version of the Shigesada–
Kawazaki–Teramoto (SKT) cross-diffusion system. We prove the existence of solutions to the …

A Fokker-Planck approach to the study of robustness in gene expression

P Degond, M Herda, S Mirrahimi - arXiv preprint arXiv:2006.14985, 2020 - arxiv.org
We study several Fokker-Planck equations arising from a stochastic chemical kinetic system
modeling a gene regulatory network in biology. The densities solving the Fokker-Planck …

On a structure-preserving numerical method for fractional Fokker-Planck equations

N Ayi, M Herda, H Hivert, I Tristani - Mathematics of Computation, 2023 - ams.org
In this paper, we introduce and analyse numerical schemes for the homogeneous and the
kinetic Lévy-Fokker-Planck equation. The discretizations are designed to preserve the main …