Results 11 to 20 of about 1,526 (125)

Dynamical analysis of a reaction–diffusion mosquito-borne model in a spatially heterogeneous environment

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we formulate and perform a strict analysis of a reaction–diffusion mosquito-borne disease model with total human populations stabilizing at H(x) in a spatially heterogeneous environment.
Wang Jinliang, Wu Wenjing, Li Chunyang
doaj   +1 more source

Sharp profiles for diffusive logistic equation with spatial heterogeneity

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we study the sharp profiles of positive solutions to the diffusive logistic equation. By employing parameters and analyzing the corresponding perturbation equations, we find the effects of boundary and spatial heterogeneity on the ...
Xing Yan-Hua, Sun Jian-Wen
doaj   +1 more source

Robustness for a Liouville type theorem in exterior domains [PDF]

open access: yes, 2013
We are interested in the robustness of a Liouville type theorem for a reaction diffusion equation in exterior domains. Indeed H. Berestycki, F. Hamel and H. Matano (2009) proved such a result as soon as the domain satisfies some geometric properties.
H Berestycki, Juliette Bouhours
core   +4 more sources

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

Shock Formation in a Multidimensional Viscoelastic Diffusive System [PDF]

open access: yes, 1995
We examine a model for non-Fickian "sorption overshoot" behavior in diffusive polymer-penetrant systems. The equations of motion proposed by Cohen and White [SIAM J. Appl. Math., 51 (1991), pp.
Cohen, Donald S.   +2 more
core   +2 more sources

On a class of nonlinear reaction‐diffusion systems with nonlocal boundary conditions

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 9, Page 793-813, 2004., 2004
We prove the existence, uniqueness, and continuous dependence of a generalized solution of a nonlinear reaction‐diffusion system with only integral terms in the boundaries. We first solve a particular case of the problem by using the energy‐integral method. Next, via an iteration procedure, we derive the obtained results to study the solvability of the
Abdelfatah Bouziani
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

On controllability, parametrization, and output tracking of a linearized bioreactor model

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 5, Page 243-276, 2003., 2003
The paper deals with a distributed parameter system related to the so‐called fixed‐bed bioreactor. The original nonlinear partial differential system is linearized around the steady state. We find that the linearized system is not exactly controllable but it is approximatively controllable when certain algebraic equations hold.
J. Tervo, M. T. Nihtilä, P. Kokkonen
wiley   +1 more source

Existence and Multiplicity of Weak Solutions for a Neumann Elliptic Problem with -Laplacian

open access: yesNonautonomous Dynamical Systems, 2020
We are interested in the existence of multiple weak solutions for the Neumann elliptic problem involving the anisotropic -Laplacian operator, on a bounded domain with smooth boundary.
Bohner Martin   +3 more
doaj   +1 more source

Incompressible limit of mechanical model of tumor growth with viscosity [PDF]

open access: yes, 2014
Various models of tumor growth are available in the litterature. A first class describes the evolution of the cell number density when considered as a continuous visco-elastic material with growth.
Perthame, Benoit, Vauchelet, Nicolas
core   +5 more sources

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