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The existence of global nonnegative martingale solutions to cross-diffusion systems of Shigesada-Kawasaki-Teramoto type with multiplicative noise is proven. The model describes the stochastic segregation dynamics of an arbitrary number of…

概率论 · 数学 2025-02-04 Marcel Braukhoff , Florian Huber , Ansgar Jüngel

The existence of a global martingale solution to a cross-diffusion system with multiplicative Wiener noise in a bounded domain with no-flux boundary conditions is shown. The model describes the dynamics of population densities of different…

偏微分方程分析 · 数学 2022-11-10 Mrinmay Biswas , Ansgar Jüngel

The existence of global nonnegative martingale solutions to a stochastic cross-diffusion system for an arbitrary but finite number of interacting population species is shown. The random influence of the environment is modeled by a…

概率论 · 数学 2020-03-20 Gaurav Dhariwal , Ansgar Jüngel , Nicola Zamponi

The existence of global weak solutions to the cross-diffusion model of Shigesada, Kawasaki, and Teramoto for an arbitrary number of species is proved. The model consists of strongly coupled parabolic equations for the population densities…

偏微分方程分析 · 数学 2022-07-21 Xiuqing Chen , Ansgar Jüngel , Lei Wang

The global-in-time existence of renormalized solutions to reaction-cross-diffu-sion systems for an arbitrary number of variables in bounded domains with no-flux boundary conditions is proved. The cross-diffusion part describes the…

偏微分方程分析 · 数学 2017-11-07 Xiuqing Chen , Ansgar Jüngel

The existence of global-in-time bounded martingale solutions to a general class of cross-diffusion systems with multiplicative Stratonovich noise is proved. The equations describe multicomponent systems from physics or biology with…

The existence of global-in-time weak solutions to reaction-cross-diffusion systems for an arbitrary number of competing population species is proved. The equations can be derived from an on-lattice random-walk model with general transition…

偏微分方程分析 · 数学 2017-10-25 Xiuqing Chen , Esther S. Daus , Ansgar Jüngel

A general class of cross-diffusion systems for two population species in a bounded domain with no-flux boundary conditions and Lotka-Volterra-type source terms is analyzed. Although the diffusion coefficients are assumed to depend linearly…

偏微分方程分析 · 数学 2015-12-04 Ansgar Jüngel , Nicola Zamponi

We prove the existence and uniqueness of solution of a nonlocal cross-diffusion competitive population model for two species. The model may be considered as a version, or even an approximation, of the paradigmatic…

偏微分方程分析 · 数学 2024-01-26 Gonzalo Galiano , Julián Velasco

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…

偏微分方程分析 · 数学 2019-10-21 Dung Le

We investigate the global time existence of smooth solutions for the Shigesada-Kawasaki-Teramoto system of cross-diffusion equations of two competing species in population dynamics. If there are self-diffusion in one species and no…

偏微分方程分析 · 数学 2013-11-28 Luan T. Hoang , Tuoc V. Phan , Truyen V. Nguyen

The global existence of classical solutions to cross diffusion systems of more than 2 equations given on a planar domain is established. The results can apply to generalized Shigesada-Kawasaki-Teramoto (SKT) and food pyramid models whose…

偏微分方程分析 · 数学 2016-05-03 Dung Le

We study a simplification of the well-known Shigesada-Kawasaki-Teramoto model, which consists of two nonlinear reaction-diffusion equations with cross-diffusion. A complete set of Q-conditional (nonclassical) symmetries is derived using an…

数学物理 · 物理学 2024-03-01 Roman Cherniha , Vasyl' Davydovych , John R. King

The global-in-time existence of nonnegative bounded weak solutions to a class of cross-diffusion systems for two population species is proved. The diffusivities are assumed to depend linearly on the population densities in such a way that a…

偏微分方程分析 · 数学 2014-04-25 Ansgar Jüngel , Nicola Zamponi

An implicit Euler finite-volume scheme for an $n$-species population cross-diffusion system of Shigesada--Kawasaki--Teramoto-type in a bounded domain with no-flux boundary conditions is proposed and analyzed. The scheme preserves the formal…

数值分析 · 数学 2020-11-18 Antoine Zurek , Ansgar Jüngel

We derive a noise term to account for fluctuation corrections based on the particle system approximation for the n-species Shigesada-Kawasaki-Teramoto (SKT) system. For the resulting system of stochastic partial differential equations…

概率论 · 数学 2025-01-31 Florian Huber

Population cross-diffusion systems of Shigesada-Kawasaki-Teramoto type are derived in a mean-field-type limit from stochastic, moderately interacting many-particle systems for multiple population species in the whole space. The diffusion…

偏微分方程分析 · 数学 2021-10-13 Li Chen , Esther S. Daus , Alexandra Holzinger , Ansgar Jüngel

In a previous paper(2021), the author studied the asymptotic behavior of coexistence steady-states to the Shigesada-Kawasaki-Teramoto model as both cross-diffusion coefficients tend to infinity at the same rate. As a result, he proved that…

偏微分方程分析 · 数学 2021-06-07 Kousuke Kuto

The weak-strong uniqueness for solutions to reaction-cross-diffusion systems in a bounded domain with no-flux boundary conditions is proved. The system generalizes the Shigesada-Kawasaki-Teramoto population model to an arbitrary number of…

偏微分方程分析 · 数学 2018-05-09 Xiuqing Chen , Ansgar Jüngel

For a class of reaction cross-diffusion systems of two equations with a cross-diffusion term in the first equation and with self-diffusion terms, we prove that the unique local smooth solution given by Amann theorem is actually global. This…

偏微分方程分析 · 数学 2022-02-22 Jessica Guerand , Angeliki Menegaki , Ariane Trescases
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