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Open AccessJournal ArticleDOI

Global Attractivity and Oscillations in a Nonlinear Impulsive Parabolic Equation with Delay

Xiao Wang, +1 more
- 31 Dec 2008 - 
- Vol. 48, Iss: 4, pp 593-611
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TLDR
The global attractivity and oscillatory behavior of the following nonlinear impul- sive parabolic dierential equation which is a general form of many population models are established in this article.
Abstract
Global attractivity and oscillatory behavior of the following nonlinear impul- sive parabolic dierential equation which is a general form of many population models ( @u(t,x) @t = 4u(t,x) u (t,x) + f(u(t ,x )),t 6 t k, u(t + ,x) u(tk,x) = gk(u(tk,x)),k 2 I1, ( ) the solutions of ( ) with Neumann boundary condition are established. These results not only are true but also improve and complement existing results for ( ) without diusion or impulses. Moreover, when these results are applied to the Nicholson's blowflies model and the model of Hematopoiesis, some new results are obtained.

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Journal ArticleDOI

Almost Periodic Solutions of Lotka–Volterra Systems with Diffusion and Pulsed Action

TL;DR: In this article, sufficient conditions for the existence and asymptotic stability of positive piecewise continuous almost periodic solutions to the Lotka-Volterra systems of differential equations with diffusion and pulsed action were established.
Journal ArticleDOI

Complex Dynamic Behaviors of an Impulsively Controlled Predator-prey System with Watt-type Functional Response

TL;DR: In this paper, the authors considered a discrete predator-prey system with Watt-type functional response and impulsive controls and found sufficient conditions for stability of a prey-free positive periodic solution of the system by using the Floquet theory.
Journal Article

On the Asymptotic Behavior of the Solution to Some Retarded Differential Equations

TL;DR: Some criteria for the asymptotic behavior (such as boundness and tending to zero) of the solution of the equation L nX(T)+sum from j=0 to m( )b_j(t)f_j (X(t-τ_i(t)))=P(t)) are established in this paper.
References
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Journal ArticleDOI

Oscillation and Chaos in Physiological Control Systems

TL;DR: First-order nonlinear differential-delay equations describing physiological control systems displaying a broad diversity of dynamical behavior including limit cycle oscillations, with a variety of wave forms, and apparently aperiodic or "chaotic" solutions are studied.
Book

Delay Differential Equations: With Applications in Population Dynamics

Yang Kuang
TL;DR: Delay Differential Equations as mentioned in this paper are a generalization of delay differential equations and have been used in a variety of applications in population dynamics, such as global stability for single species models and multi-species models.
Journal ArticleDOI

Comparison principles for impulsive parabolic equations with applications to models of single species growth

TL;DR: In this article, the authors established some maximum and comparison principles relative to lower and upper solutions of nonlinear parabolic partial differential equations with impulsive effects, and obtained sufficient conditions for the global asymptotic stability of a unique positive equilibrium in a reaction-diffusion equation modeling the growth of a single-species population subject to abrupt changes of certain important system parameters.
Journal ArticleDOI

Asymptotic behavior of solutions of retarded differential equations

TL;DR: In this paper, the authors obtained sufficient conditions under which every solution of the retarded differential equation (1) x'(t) + p (t)x(t -T) = O, t :,2 to where T is a nonnegative constant, and p(t > 0, is a continuous function, tends to zero as t o0.
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