Structure preserving polytopal discontinuous Galerkin methods for the numerical modeling of neurodegenerative diseases

M Corti, F Bonizzoni, PF Antonietti - Journal of Scientific Computing, 2024 - Springer
Many neurodegenerative diseases are connected to the spreading of misfolded prionic
proteins. In this paper, we analyse the process of misfolding and spreading of both α …

Scaling limits of discrete optimal transport

P Gladbach, E Kopfer, J Maas - SIAM Journal on Mathematical Analysis, 2020 - SIAM
We consider dynamical transport metrics for probability measures on discretizations of a
bounded convex domain in \mathbbR^d. These metrics are natural discrete counterparts to …

A numerical-analysis-focused comparison of several finite volume schemes for a unipolar degenerate drift-diffusion model

C Cancès, C Chainais-Hillairet… - IMA Journal of …, 2021 - academic.oup.com
In this paper we consider a unipolar degenerate drift-diffusion system where the relation
between the concentration of the charged species and the chemical potential is. We design …

A variational finite volume scheme for Wasserstein gradient flows

C Cances, TO Gallouët, G Todeschi - Numerische Mathematik, 2020 - Springer
We propose a variational finite volume scheme to approximate the solutions to Wasserstein
gradient flows. The time discretization is based on an implicit linearization of the …

Computational and analytical comparison of flux discretizations for the semiconductor device equations beyond Boltzmann statistics

P Farrell, T Koprucki, J Fuhrmann - Journal of Computational Physics, 2017 - Elsevier
We compare three thermodynamically consistent numerical fluxes known in the literature,
appearing in a Voronoï finite volume discretization of the van Roosbroeck system with …

Large-time behaviour of a family of finite volume schemes for boundary-driven convection–diffusion equations

C Chainais-Hillairet, M Herda - IMA Journal of Numerical …, 2020 - academic.oup.com
We are interested in the large-time behaviour of solutions to finite volume discretizations of
convection–diffusion equations or systems endowed with nonhomogeneous Dirichlet-and …

Long-time behaviour of hybrid finite volume schemes for advection–diffusion equations: linear and nonlinear approaches

C Chainais-Hillairet, M Herda, S Lemaire… - Numerische …, 2022 - Springer
We are interested in the long-time behaviour of approximate solutions to anisotropic and
heterogeneous linear advection–diffusion equations in the framework of hybrid finite volume …

A Lagrangian scheme for the solution of nonlinear diffusion equations using moving simplex meshes

JA Carrillo, B Düring, D Matthes… - Journal of Scientific …, 2018 - Springer
A Lagrangian numerical scheme for solving nonlinear degenerate Fokker–Planck equations
in space dimensions d ≥ 2 d≥ 2 is presented. It applies to a large class of nonlinear …

Numerical analysis of a nonlinear free-energy diminishing discrete duality finite volume scheme for convection diffusion equations

C Cancès, C Chainais-Hillairet, S Krell - Computational Methods in …, 2018 - degruyter.com
We propose a nonlinear Discrete Duality Finite Volume scheme to approximate the solutions
of drift diffusion equations. The scheme is built to preserve at the discrete level even on …

A convergent entropy diminishing finite volume scheme for a cross-diffusion system

C Cancès, B Gaudeul - SIAM Journal on Numerical Analysis, 2020 - SIAM
We study a two-point flux approximation finite volume scheme for a cross-diffusion system.
The scheme is shown to preserve the key properties of the continuous systems, among …