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Entropy, Duality and Cross Diffusion [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2013
This paper is devoted to the use of the entropy and duality methods for the existence theory of reaction-cross diffusion systems consisting of two equations, in any dimension of space.
Desvillettes, Laurent   +2 more
core   +5 more sources

Cross-diffusion driven instability in a predator-prey system with cross-diffusion [PDF]

open access: yesActa Applicandae Mathematicae, 2014
In this work we investigate the process of pattern formation induced by nonlinear diffusion in a reaction-diffusion system with Lotka-Volterra predator-prey kinetics.
Lombardo, Maria Carmela   +2 more
core   +3 more sources

Cross-diffusion systems with entropy structure [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2017
Some results on cross-diffusion systems with entropy structure are reviewed. The focus is on local-in-time existence results for general systems with normally elliptic diffusion operators, due to Amann, and global-in-time existence theorems by Lepoutre ...
Jüngel, Ansgar
core   +7 more sources

Homogenization of degenerate cross-diffusion systems [PDF]

open access: yesJournal of Differential Equations, 2018
Two-scale homogenization limits of parabolic cross-diffusion systems in a heterogeneous medium with no-flux boundary conditions are proved. The heterogeneity of the medium is reflected in the diffusion coefficients or by the perforated domain.
Juengel, Ansgar, Ptashnyk, Mariya
core   +4 more sources

Vanishing cross-diffusion limit in a Keller–Segel system with additional cross-diffusion [PDF]

open access: yesNonlinear Analysis, 2020
Keller-Segel systems in two and three space dimensions with an additional cross-diffusion term in the equation for the chemical concentration are analyzed. The cross-diffusion term has a stabilizing effect and leads to the global-in-time existence of weak solutions.
Jüngel, Ansgar   +2 more
openaire   +2 more sources

Cross-Diffusion Modeling in Macroeconomics [PDF]

open access: yesDifferential Equations and Dynamical Systems, 2014
This paper deals with the stability properties of a closed market, where capital and labour force are acting like a predator-prey system in population-dynamics. The spatial movement of the capital and labour force are taken into account by cross-diffusion effect.
Balázsi, L., Kiss, Krisztina
openaire   +4 more sources

Global Existence for some Cross Diffusion Systems with Equal Cross Diffusion/Reaction Rates [PDF]

open access: yesAdvanced Nonlinear Studies, 2020
Abstract We consider some cross diffusion systems which is inspired by models in mathematical biology/ecology, in particular the Shigesada–Kawasaki–Teramoto (SKT) model in population biology. We establish the global existence of strong solutions to systems for multiple species having equal either diffusion or reaction rates.
openaire   +4 more sources

Exhibiting cross-diffusion-induced patterns for reaction-diffusion systems on evolving domains and surfaces [PDF]

open access: yes, 2014
The aim of this manuscript is to present for the first time the application of the finite element method for solving reaction-diffusion systems with cross-diffusion on continuously evolving domains and surfaces.
A. Madzvamuse   +9 more
core   +1 more source

Lie symmetries of the Shigesada-Kawasaki-Teramoto system [PDF]

open access: yes, 2016
The Shigesada-Kawasaki-Teramoto system, which consists of two reaction-diffusion equations with variable cross-diffusion and quadratic nonlinearities, is considered.
Cherniha, Roman   +2 more
core   +2 more sources

Rigorous mean-field limit and cross-diffusion [PDF]

open access: yesZeitschrift für angewandte Mathematik und Physik, 2019
The mean-field limit in a weakly interacting stochastic many-particle system for multiple population species in the whole space is proved. The limiting system consists of cross-diffusion equations, modeling the segregation of populations. The mean-field limit is performed in two steps: First, the many-particle system leads in the large population limit
Li Chen, Esther S. Daus, Ansgar Jüngel
openaire   +3 more sources

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