Results 21 to 30 of about 51,229 (231)

Global convergence dynamics of almost periodic delay Nicholson's blowflies systems

open access: yesJournal of Biological Dynamics, 2020
We take into account nonlinear density-dependent mortality term and patch structure to deal with the global convergence dynamics of almost periodic delay Nicholson's blowflies system in this paper.
Chuangxia Huang, Renli Su, Yuhui Hu
doaj   +1 more source

Asymptotic properties and convolutions of some almost periodic functions with applications

open access: yesAnnali di Matematica Pura ed Applicata (1923 -), 2022
AbstractIn this note we are going to continue investigation concerning the asymptotic behavior of some Levitan almost periodic functions or almost periodic functions in view of the Lebesgue measure as well as their convolutions with some functions naturally arising in the theory of ordinary linear differential equations.
Dariusz Bugajewski   +2 more
openaire   +1 more source

Novel stability criteria on nonlinear density-dependent mortality Nicholson’s blowflies systems in asymptotically almost periodic environments

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we consider nonlinear density-dependent mortality Nicholson’s blowflies system involving patch structures and asymptotically almost periodic environments.
Chaofan Qian, Yuhui Hu
doaj   +1 more source

Asymptotically Almost Periodic Solutions for a Class of Stochastic Functional Differential Equations [PDF]

open access: yesAbstract and Applied Analysis, 2014
This work is concerned with the quadratic-mean asymptotically almost periodic mild solutions for a class of stochastic functional differential equationsdxt=Atxt+Ft,xt,xtdt+H(t,xt,xt)∘dW(t). A new criterion ensuring the existence and uniqueness of the quadratic-mean asymptotically almost periodic mild solutions for the system is presented. The condition
Liu, Aimin, Liu, Yongjian, Liu, Qun
openaire   +4 more sources

Statistical properties of the method of regularization with periodic Gaussian reproducing kernel [PDF]

open access: yes, 2004
The method of regularization with the Gaussian reproducing kernel is popular in the machine learning literature and successful in many practical applications. In this paper we consider the periodic version of the Gaussian kernel regularization.
Brown, Lawrence D., Lin, Yi
core   +4 more sources

A Delay Almost Periodic Competitive System in Discrete Time

open access: yesDiscrete Dynamics in Nature and Society, 2015
A discrete almost periodic competitive system with delay is proposed and analyzed. The system admits a unique almost periodic solution, which is shown to be uniformly asymptotically stable by using the method of Lyapunov function. Some specific numerical
Ronghua Tan, Lvli Liao
doaj   +1 more source

Almost Periodic Solution of a Multispecies Discrete Mutualism System with Feedback Controls

open access: yesDiscrete Dynamics in Nature and Society, 2015
We consider an almost periodic multispecies discrete Lotka-Volterra mutualism system with feedback controls. We firstly obtain the permanence of the system by utilizing the theory of difference equation.
Hui Zhang   +3 more
doaj   +1 more source

Extreme phase sensitivity in systems with fractal isochrons [PDF]

open access: yes, 2015
Sensitivity to initial conditions is usually associated with chaotic dynamics and strange attractors. However, even systems with (quasi)periodic dynamics can exhibit it.
Mauroy, Alexandre, Mezic, Igor
core   +1 more source

Almost Periodic Sequence Solutions of a Discrete Predator-Prey System with Beddington-DeAngelis Functional Response

open access: yesAbstract and Applied Analysis, 2014
This paper considers a discrete predator-prey system with Beddington-DeAngelis functional response. Sufficient conditions are obtained for the existence of the almost periodic solution which is uniformly asymptotically stable by constructing a Lyapunov ...
Zengji Du, Wenbin Li
doaj   +1 more source

Rare event simulation for multiscale diffusions in random environments [PDF]

open access: yes, 2015
We consider systems of stochastic differential equations with multiple scales and small noise and assume that the coefficients of the equations are ergodic and stationary random fields.
Spiliopoulos, Konstantinos
core   +1 more source

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