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We introduce a generalized concept of solutions for reaction-diffusion systems and prove their global existence. The only restriction on the reaction function beyond regularity, quasipositivity and mass control is special in that it merely…

偏微分方程分析 · 数学 2021-08-03 Johannes Lankeit , Michael Winkler

We investigate a class of three-component reaction-diffusion systems subject to mass control and a newly introduced structural assumption, referred to as linear intermediate weighted sum condition. Under these hypotheses, we establish the…

偏微分方程分析 · 数学 2025-11-03 Redouane Douaifia , Salem Abdelmalek , Mokhtar Kirane

We prove pathwise uniqueness and strong existence of solutions for stochastic reaction-diffusion systems with locally Lipschitz continuous reaction term of polynomial growth and H\"older continuous multiplicative noise. Under additional…

概率论 · 数学 2012-09-24 Markus C. Kunze

In this work we prove global existence and uniform boundedness of solutions of 2X2 reaction-diffusion systems with control of mass structure and nonlinearities of unlimited growth. Furthermore the results are obtained without restrictions…

偏微分方程分析 · 数学 2023-01-19 Said Kouachi

We present new results of existence of global solutions for a class of reaction cross-diffusion systems of two equations presenting a cross-diffusion term in the first equation, and possibly presenting a self-diffusion term in any (or both)…

偏微分方程分析 · 数学 2015-03-26 Ariane Trescases

We study the global existence of solutions reaction-diffusion systems with control of mass on multiple domains. Some of these domains overlap, and as a result, an unknown defined on one subdomain can impact another unknown defined on a…

偏微分方程分析 · 数学 2022-06-22 William E. Fitzgibbon , Jeff Morgan , Joh Maurice-Car Ryan

In this paper, we prove global-in-time existence of strong solutions to a class of fractional parabolic reaction-diffusion systems posed in a bounded domain of $\mathbb{R}^N$. The nonlinear reactive terms are assumed to satisfy natural…

偏微分方程分析 · 数学 2023-06-07 Maha Daoud , El-Haj Laamri , Azeddine Baalal

The global existence of classical solutions to reaction-diffusion systems in arbitrary space dimensions is studied. The nonlinearities are assumed to be quasi-positive, to have (slightly super-) quadratic growth, and to possess a mass…

偏微分方程分析 · 数学 2019-02-26 Klemens Fellner , Jeff Morgan , Bao Quoc Tang

Reaction diffusion systems describe the behaviour of dynamic, interacting, particulate systems. Quantum stochastic processes generalise Brownian motion and Poisson processes, having operator valued It\^{o} calculus machinery. Here it is…

数学物理 · 物理学 2023-05-31 Chris D Greenman

The global existence of bounded solutions to reaction-diffusion systems with fractional diffusion in the whole space $\mathbb R^N$ is investigated. The systems are assumed to preserve the non-negativity of initial data and to dissipate…

偏微分方程分析 · 数学 2025-02-25 Phuoc-Tai Nguyen , Bao Quoc Tang

This paper considers quadratic and super-quadratic reaction-diffusion systems for reversible chemistry, for which all species satisfy uniform-in-time $L^1$ a-priori estimates, for instance, as a consequence of suitable mass conservation…

偏微分方程分析 · 数学 2015-11-26 Klemens Fellner , Evangelos Latos , Takashi Suzuki

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…

We analyze semilinear reaction-diffusion systems that are mass controlled, and have nonlinearities that satisfy critical growth rates. The systems under consideration are only assumed to satisfy natural assumptions, namely the preservation…

偏微分方程分析 · 数学 2023-05-04 Chunyou Sun , Bao Quoc Tang , Juan Yang

This paper is concerned with the problem of regularization by noise of systems of reaction-diffusion equations with mass control. It is known that $\textit{strong}$ solutions to such systems of PDEs may blow-up in finite time. Moreover, for…

偏微分方程分析 · 数学 2023-11-30 Antonio Agresti

We prove existence and uniqueness of global solutions for a class of reaction-advection-anisotropic-diffusion systems whose reaction terms have a "triangular structure". We thus extend previous results to the case of time-space dependent…

偏微分方程分析 · 数学 2016-02-10 Dieter Bothe , André Fischer , Michel Pierre , Guillaume Rolland

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

We describe sufficient conditions on the reaction terms and multiplicative noise terms of a stochastic reaction-diffusion equation that guarantee that the solutions never explode. Both the reaction term and multiplicative noise terms are…

概率论 · 数学 2022-06-23 Michael Salins

The time-global existence of solutions to a system of stochastic Schr\"odinger equations with multiplicative noise and the quadratic nonlinear terms are discussed in this paper. The same system in the deterministic treatment was studied in…

偏微分方程分析 · 数学 2023-05-30 Masaru Hamano , Shunya Hashimoto , Shuji Machihara

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 aim of this work is to study the global existence of solutions for some coupled systems of reaction diffusion which describe the spread within a population of infectious disease. We consider a triangular matrix diffusion and we show…

偏微分方程分析 · 数学 2011-02-01 Abdelmalek Salem , Youkana Amar
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