Results 1 to 10 of about 43 (41)

Existence of global solutions to reaction-diffusion systems with nonhomogeneous boundary conditions via a Lyapunov functional

open access: yesElectronic Journal of Differential Equations, 2002
Most publications on reaction-diffusion systems of $m$ components ($mgeq 2$) impose $m$ inequalities to the reaction terms, to prove existence of global solutions (see Martin and Pierre [10 ] and Hollis [4]).
Said Kouachi
doaj   +1 more source

Global solution for a diffusive epidemic model (HIV/AIDS) with an exponential behavior of source [PDF]

open access: yes, 2023
We consider the question of global existence and uniform boundedness of nonnegative solutions of a system of reaction-diffusion equations with exponential nonlinearity, without any restriction on initial data, using maximum principle and Lyapunov ...
DADDIOUAISSA, El Hachemi
core   +1 more source

Asymptotic stability of solutions for a diffusive epidemic model

open access: yesDemonstratio Mathematica, 2022
The aim of this paper is to study the existence and the asymptotic stability of solutions for an epidemiologically emerging reaction-diffusion model. We show that the model has two types of equilibrium points to resolve the proposed system for a fairly ...
Bouaziz Khelifa   +2 more
doaj   +1 more source

Asymptotic stability of an epidemiological fractional reaction-diffusion model

open access: yesDemonstratio Mathematica, 2023
The aim of this article is to study the known susceptible-infectious (SI) epidemic model using fractional order reaction-diffusion fractional partial differential equations [FPDEs] in order to better describe the dynamics of a reaction-diffusion SI with ...
Djebara Lamia   +2 more
doaj   +1 more source

Properties of generalized degenerate parabolic systems

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we consider the parabolic system (ui)t=∇⋅(mUm−1A(∇ui,ui,x,t)+ℬ(ui,x,t)),(1≤i≤k){({u}^{i})}_{t}=\nabla \cdot (m{U}^{m-1}{\mathcal{A}}(\nabla {u}^{i},{u}^{i},x,t)+{\mathcal{ {\mathcal B} }}({u}^{i},x,t)),\hspace{1.0em}(1\le i\le k) in the ...
Kim Sunghoon, Lee Ki-Ahm
doaj   +1 more source

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

open access: yesAdvanced Nonlinear Studies, 2020
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.
Le Dung
doaj   +1 more source

Random attractors for stochastic two-compartment Gray-Scott equations with a multiplicative noise

open access: yesOpen Mathematics, 2016
In this paper, we consider the existence of a pullback attractor for the random dynamical system generated by stochastic two-compartment Gray-Scott equation for a multiplicative noise with the homogeneous Neumann boundary condition on a bounded domain of
Jia Xiaoyao, Gao Juanjuan, Ding Xiaoquan
doaj   +1 more source

Local existence result of the single dopant diffusion including cluster reactions of high order

open access: yesAbstract and Applied Analysis, Volume 6, Issue 1, Page 13-34, 2001., 2001
We consider the pair diffusion process which includes cluster reactions of high order. We are able to prove a local (in time) existence result in arbitrary space dimensions. The model includes a nonlinear system of reaction‐drift‐diffusion equations, a nonlinear system of ordinary differential equations in Banach spaces, and a nonlinear elliptic ...
R. Bader, W. Merz
wiley   +1 more source

Random attractors for stochastic retarded reaction-diffusion equations with multiplicative white noise on unbounded domains

open access: yesOpen Mathematics, 2018
In this paper we investigate the stochastic retarded reaction-diffusion equations with multiplicative white noise on unbounded domain ℝn (n ≥ 2). We first transform the retarded reaction-diffusion equations into the deterministic reaction-diffusion ...
Jia Xiaoyao, Ding Xiaoquan, Gao Juanjuan
doaj   +1 more source

Vibration of Dry Ice Placed on a Metallic Structure [PDF]

open access: yes, 2018
Vibration of a dry ice block placed on a metallic beam structure is analyzed under two steps, i.e. a sublimation step under high heat flux using one-dimensional linearized heat conduction equation neglecting gaseous flow and the following jump stage of ...
Mochimaru, Yoshihiro
core   +1 more source

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