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A general reaction-diffusion equation with spatiotemporal delay and homogeneous Dirichlet boundary condition is considered. The existence and stability of positive steady state solutions are proved via studying an equivalent…

偏微分方程分析 · 数学 2021-02-24 Wenjie Zuo , Junping Shi

We consider a reaction-diffusion system which may serve as a model for a ferment catalytic reaction in chemistry. The model consists of a system of reaction diffusion equations with unbounded time dependent coefficients and different…

偏微分方程分析 · 数学 2022-06-14 Mohamed Majdoub , Nasser-eddine Tatar

We study the global existence and uniform-in-time bounds of classical solutions in all dimensions to reaction-diffusion systems dissipating mass. By utilizing the duality method and the regularization of the heat operator, we show that if…

偏微分方程分析 · 数学 2019-05-28 Brian P. Cupps , Jeff Morgan , Bao Quoc Tang

In this work we study the existence of classical solutions for a class of reaction-diffusion systems with quadratic growth naturally arising in mass action chemistry when studying networks of reactions of the type $A_i+A_j…

偏微分方程分析 · 数学 2016-03-18 Dieter Bothe , Guillaume Rolland

In this paper we study a broad class of non-local advection-diffusion models describing the behaviour of an arbitrary number of interacting species, each moving in response to the non-local presence of others. Our model allows for different…

偏微分方程分析 · 数学 2024-06-17 Valeria Giunta , Thomas Hillen , Mark Lewis , Jonathan Potts

We analyze a reaction-diffusion system on $\mathbb{R}^{N}$ which models the dispersal of individuals between two exchanging environments for its diffusive component and incorporates a Fujita-type growth for its reactive component. The…

偏微分方程分析 · 数学 2023-07-04 Samuel Tréton

We present global existence results for solutions of reaction-diffusion systems on evolving domains. Global existence results for a class of reaction-diffusion systems on fixed domains are extended to the same systems posed on spatially…

斑图形成与孤子 · 物理学 2011-04-06 Chandrasekhar Venkataraman , Omar Lakkis , Anotida Madzvamuse

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

Flocculation is the process whereby particles (i.e., flocs) in suspension reversibly combine and separate. The process is widespread in soft matter and aerosol physics as well as environmental science and engineering. We consider a general…

动力系统 · 数学 2018-04-24 Inom Mirzaev , David M. Bortz

This paper is devoted to the study of the regularity of solutions to some systems of reaction--diffusion equations, with reaction terms having a subquadratic growth. We show the global boundedness and regularity of solutions, without…

偏微分方程分析 · 数学 2009-01-29 M. Cristina Caputo , Alexis Vasseur

We consider a system of reaction-diffusion equations describing the reversible reaction of two species $\mathcal{U}, \mathcal{V}$ forming a third species $\mathcal{W}$ and vice versa according to mass action law kinetics with arbitrary…

偏微分方程分析 · 数学 2015-12-29 Klemens Fellner , El-Haj Laamri

The global existence of classical solutions to reaction-diffusion systems in dimensions one and two is proved. The considered systems are assumed to satisfy an {\it entropy inequality} and have nonlinearities with at most cubic growth in 1D…

偏微分方程分析 · 数学 2017-11-29 Bao Quoc Tang

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

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 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

In this paper we consider a class of stochastic reaction-diffusion equations. We provide local well-posedness, regularity, blow-up criteria and positivity of solutions. The key novelties of this work are related to the use transport noise,…

偏微分方程分析 · 数学 2023-05-31 Antonio Agresti , Mark Veraar

A time-space fractional reaction-diffusion equation in a bounded domain is considered. Under some conditions on the initial data, we show that solutions may experience blow-up in a finite time. However, for realistic initial conditions,…

偏微分方程分析 · 数学 2020-04-09 Ahmed Alsaedi , Mokhtar Kirane , Berikbol T. Torebek

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

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

This paper investigates the global well-posedness of a class of reaction-advection-diffusion models with nonlinear diffusion and Lotka-Volterra dynamics. We prove the existence and uniform boundedness of the global-in-time solutions to the…

偏微分方程分析 · 数学 2019-05-21 Qi Wang , Jingyue Yang , Feng Yu
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