白噪声作用下统一混沌系统的脉冲同步

考察了白噪声和脉冲信号联合作用下统一混沌系统的随机渐近稳定性问题,得到该随机脉冲系统的比较系统,从而由该确定性比较系统的稳定性得到原随机脉冲系统的随机渐近稳定性.并从理论上得到能使该随机脉冲系统随机渐近稳定的参数取值范围,最后用数值仿真验证了理论结果的正确性.     

带有延迟脉冲量的脉冲随机微分方程的稳定性（英文）

本文研究带有限延迟脉冲随机泛函微分方程的p阶矩稳定性和p阶矩渐近稳定性的问题.利用Razumikhin技巧和Lyapunov函数的方法,获得方程p阶矩稳定性和p阶矩渐近稳定性的结果.     

分数布朗运动驱动的脉冲中立型随机泛函微分方程的渐近稳定性

该文在实可分的Hilbert空间中,用不动点方法研究了由分数布朗运动驱动的脉冲中立型随机泛函微分方程温和解的P阶矩的渐近稳定性并举例说明所得结论的可行性.     

具有分布时滞和区间参数的随机系统的p-阶矩指数鲁棒稳定性

研究了一类具有分布时滞和区间参数的随机系统的p-阶矩指数鲁棒稳定性问题,利用Liapunov-Krasovskii泛函、区间矩阵的分解技术及Ito公式,得到了该系统p-阶矩指数鲁棒稳定的时滞依赖的稳定性判据.通过数值例子说明了所得判据的有效性和实用性.     

具马尔可夫切换和多个时滞脉冲的随机系统的稳定性

本文研究了具马尔可夫切换和多个时滞脉冲的随机系统p阶矩指数稳定,状态变量的脉冲增益依赖于多个有限时变时滞.利用随机分析和脉冲技巧,得到系统新的稳定性准则,并举例说明结果的有效性.     

一般衰减率下脉冲随机泛函微分方程的p阶矩稳定性

研究了具有一般衰减率的脉冲随机泛函微分方程的p阶矩稳定性问题.利用Lyapunov泛函法、随机分析理论和文章所建立的脉冲微分不等式,得到了该方程在一般衰减率下p阶矩稳定性和几乎必然稳定性的一些充分性条件.所得的这些条件既简单又具有一般性,并被应用于讨论了一般衰减率下脉冲随机时滞微分方程的p阶矩稳定性问题.实例表明,所得结果是有效的和实用的.     

一类脉冲随机神经网络的矩指数稳定性分析

基于数学归纳法,本文研究了一类脉冲随机神经网络的均方指数稳定和P阶矩指数稳定性问题,建立了具有更低保守性的矩指数稳定的充分条件.     

具有时变灰参数的随机时滞系统的p-阶矩指数鲁棒稳定性

利用灰矩阵的矩阵覆盖集的分解技术和Lyapunov函数法,研究了具有时变灰色参数的随机时滞系统的p-阶矩指数鲁棒稳定性问题,得到了该系统p-阶矩指数鲁棒稳定的时滞独立和时滞依赖的条件,并通过数值例子说明了判别条件的有效性和实用性.     

一类区间随机分布时滞系统的p-阶矩指数稳定性

研究了一类区间随机分布时滞系统的p-阶矩指数稳定性问题.利用分布时滞转化为点时滞方法和区间矩阵的分解技术,得到了该系统p-阶矩指数稳定的时滞依赖的稳定性判据.通过数值例子说明了所得判据的有效性和实用性.     

脉冲时滞微分系统的弱指数渐近稳定性

研究了脉冲时滞微分系统的弱指数渐近稳定性.利用Razumikhin-Lyapunov函数方法得到系统弱指数渐近稳定的充分判据.提出"可脉冲弱指数镇定"及"脉冲控制模式"的概念.对一类较一般的n阶非线性脉冲时滞系统的脉冲镇定问题作了深入探讨.     

Stochastic asymptotical stability for stochastic impulsive differential equations and it is application to chaos synchronization

In this paper, the stochastic asymptotical stability of stochastic impulsive differential equations is studied, and a comparison theory about the stochastic asymptotical stability of trivial solution is established. From the comparison theory, we can find out whether the stochastic impulsive differential system is stochastic asymptotically stable by studying the stability of a deterministic comparison system. As an application of this theory, we study the problem of chaos synchronization in Chua circuit using impulsive method. Finally, numerical simulation is employed to verify the feasibility of our method.     

一类具有脉冲效应的浮游生物模型的持久性以及概周期解

利用脉冲微分方程的对比定理以及李雅普诺夫函数法,我们研究了一类具有脉冲效应的浮游生物模型的持久性以及概周期解.文中所得结论改进了以往的研究成果.文中所用的研究方法可以用来研究其他带有脉冲的生物数学模型的持久性以及概周期解.最后,我们总结阐述了脉冲如何影响模型的持久性,概周期解以及一致渐进稳定性.     

Experimental study on impulsive synchronization between two modified Chua's circuits

As in many continuous synchronization studies and chaos-based communication systems, the paradigmatic chaos generator, Chua's circuit has been generally used in impulsive synchronization schemes. On the other hand, different versions of Chua's circuit are considered in literature. Nowadays, we realized a new version of Chua's circuit by modifying circuit connections and inserting an additional passive element to the circuit structure. In this study, we have experimentally investigated impulsive synchronization between two modified Chua's circuits. Experimental results show that impulsive synchronization is achieved in the proposed scheme with respect to the switching frequency.     

Stability of hybrid stochastic differential systems with switching and time delay

This article introduces a hybrid stochastic differential system with impulsive, switching and time-delay. Some stability criteria of p-moment global asymptotical stability, p-moment global exponential stability and mean square stability of this system are derived by using switching Lyapunov function approach, Itô formula, impulsive differential inequality method, and linear matrix equality techniques. Three examples are presented to demonstrate the efficiency of the obtained results.     

Impulsive perturbations in a predator–prey model with dormancy of predators

In this paper, a predator–prey model consisting of active and dormant states of predators with impulsive control strategy is established. Using Floquet theories, the small amplitude perturbation technique and the piecewise Lyapunov function method, the conditions of local and global asymptotical orbital stability of the prey-eradication periodic solution are obtained. The boundness and permanence of the impulsive system are proved by the comparison principle. Through numerical simulations, the effects of the impulsive perturbation on the inherent oscillation are investigated, which implies that the impulsive perturbation can lead to period-doubling bifurcation, chaos, and period-halving bifurcation. Moreover, the effects of the impulsive perturbation and hatching rate on the chaos of the system are comparatively studied by numerical simulation. These obtained results can be useful for ecosystem management and for explaining complex phenomena of ecosystems.     

Stability analysis of switched impulsive systems with time delays

In this paper, a new stability analysis of switched impulsive systems with time delays whose subsystem is not necessarily stable is presented. A sufficient condition on uniformly asymptotical stability for nonlinear switched impulsive systems is obtained. Using the result obtained and the minimum (maximum) holding time, an easily verifiable condition on uniformly asymptotical stability for linear switched impulsive systems with time delays is derived. The control synthesis is also discussed. Finally, two examples with simulation results are given to validate the results.     

具有脉冲输入和资源循环的恒化器模型

研究了一类在污染环境下的具有脉冲输入和资源循环的Monod型恒化器模型,利用Floquet定理和脉冲微分方程解的比较定理,我们得出了系统的微生物灭绝周期解全局渐近稳定以及系统持久的充分条件.     

随机脉冲微分系统指数稳定性

该文首先给出了具有随机脉冲时刻影响的非线性微分系统 模型，然后得到了该模型零解的p阶矩指数稳定和几乎必然指数稳定的充分条件，在所得结果中不要求dV(t,x(t)) /dt定负．最后，给出一个例子说明所得结果的应用．     

Asymptotical Stability in Probability for Stochastic Bilinear Systems with Markovian Switching

This paper deals with asymptotical stability in probability in the large for stochastic bilinear systems. Some new criteria for asymptotical stability of such systems have been established in the inequality of mathematic expectation. A sufficient condition for bilinear stochastic jump systems to be asymptotically stable in probability in the large in Markovian switching laws is derived in a couple of Riccati-like inequalities by introducing a nonlinear state feedback controller. An illustrative example shows the effectiveness of the method.