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的零点分布.对于式中 A=0所确定的滞后型系统稳定性问题,已有许多结论;而对于 A(?)0的中立型系统稳定问题,则文献较少.虽然文献[4,5]均进行了这方面的研究,但均没有能给出一般情况下的(1)式系统稳定的实用代数充要判别方法.本文在文献[3,5]基础上,首先给出了(1)全时滞ε-稳定性的定义;然后导出了关于其稳定性的几 相似文献
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研究了变时滞退化Lurie控制系统的绝对稳定性问题.基于Lyapunov稳定性理论,利用线性矩阵不等式方法给出了系统绝对稳定的判别准则.讨论了变时滞退化Lurie直接控制系统和间接控制系统的绝对稳定性,得到绝对稳定性的充分条件仅依赖于时滞导数的大小,且时滞可以是无界函数:最后给出了实例说明本文结果的有效性. 相似文献
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本文研究了一类随机时滞递归神经网络的指数稳定性问题.利用非负鞅收敛定理和Lyapunov泛函的方法,获得了这类神经网络矩指数稳定性的新的代数准则,所给代数准则简单易用.一个具体实例用来说明稳定性判别准则的应用. 相似文献
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宋美 《数学的实践与认识》2009,39(15)
研究了一类带时滞的SIR传染病模型,利用多项式判别系统研究了无病平衡点的全时滞稳定性,利用超越函数零点判别法研究了正平衡点的局部渐近稳定性. 相似文献
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具有变量时滞的非线性中立型微分方程组的解的有界性和稳定性 总被引:7,自引:0,他引:7
<正> [1]曾对具有常量时滞的线性中立型微分方程组,给出了解的有界性的充分判别准则.[2]对于非线性中立型微分差分方程,建立了解的有界性的一般性判别定理.[3,4]利用 А.М.Ляпунов方法分别研究了一类线性的和非线性的中立型时滞系统的渐近稳定性.本文的目的是:借助于[5]、[1]的思想,利用“积分不等式”的方法,对于一般的具有变量时滞的非线性中立型微分方程组,建立解的有界性和渐近稳定性的充分判别定理,得到的结果改进和推广了上述两方面的研究. 相似文献
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本文研究非线性中立型有界时滞大系统和非线性中立型无界时滞大系统在C空间中的稳定性,获得了简洁、实用的稳定性代数充分准则。本文还对非线性时滞大系统的稳定性进行了研究,建立起一个高维时滞微分不等式,推广了著名的Halanay时滞微分不等式。 相似文献
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狄成宽 《数学的实践与认识》2011,41(23)
Lambert W函数具有的一些性质以及现今成熟的数学软件Maple等使得它能很好地应用于时滞微分方程的稳定性判别中.通过应用Lambert W函数对一阶复系数时滞微分方程渐近稳定性的判别命题,分析了一类参数反馈控制复系数时滞微分方程的稳定性,得到了更加精细的结果.相比已往的方法,新方法更简单、计算更方便并能快速有效的给出判定结果. 相似文献
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马万彪 《数学年刊A辑(中文版)》1988,(2)
本文通过建立一个线性差分不等式,利用向量V函数法,研究了一类具变时滞的变系数线性差分系统零解的指数稳定性,给出了一些简单的稳定性代数判据。 相似文献
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《Applied Mathematics Letters》2003,16(7):1063-1068
In this paper, the asymptotic stability of interval neutral delay-differential systems is investigated. A delay-independent criterion for the stability of the system is derived in terms of the spectral radius. Numerical computations are performed to illustrate the result. 相似文献
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一类中立型间接控制系统的鲁棒绝对稳定性 总被引:5,自引:0,他引:5
研究了有多个执行机构的多滞后中立型间接不确定Lurie控制系统的鲁棒绝对稳定性,借助于Lyapunov泛函构造方法,给出了关于Lyapunov泛函中正定矩阵和积分项参数的线性矩阵不等式(LMI)的稳定性判别准则,且与时滞量的大小无关.最后举例说明了本文结果的有效性. 相似文献
13.
Cemil Tun 《Annals of Differential Equations》2011,(1):1-8
In this article,we establish some new delay-dependent and delay-independent stability criteria for all solutions to a nonlinear neutral differential equation,using Lyapunov-Krasovskii functional. 相似文献
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Jiaoxun KuangHongjiong Tian Kaiting Shan 《Applied mathematics and computation》2011,217(24):10087-10094
We are concerned with delay-independent asymptotic stability of linear system of neutral differential equations. We first establish a sufficient and necessary condition for the system to be delay-independently asymptotically stable, and then give some equivalent stability conditions. This paper improves many recent results on the asymptotic stability in the literature. One example is given to show that the sufficient and necessary condition is easy to verify. 相似文献
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This paper investigates asymptotic stability problem for neutral system with interval time-varying delays and two classes of uncertainties. Delay-dependent and delay-independent criteria are proposed to guarantee the asymptotic stability for our considered systems. Lyapunov–Krasovskii functional and Leibniz–Newton formula are applied to find the delay-dependent stability results. Linear matrix inequality (LMI) approach is used to solve the proposed conditions. Finally, some numerical examples are illustrated to show the improvement of this paper. 相似文献
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Based on the availability of prey and a simple predator–prey model, we propose a delayed predator–prey model with predator migration to describe biological control. We first study the existence and stability of equilibria. It turns out that backward bifurcation occurs with the migration rate as bifurcation parameter. The stability of the trivial equilibrium and the boundary equilibrium is delay-independent. However, the stability of the positive equilibrium may be delay-dependent. Moreover, delay can switch the stability of the positive equilibrium. When the positive equilibrium loses stability, Hopf bifurcation can occur. The direction and stability of Hopf bifurcation is derived by applying the center manifold method and the normal form theory. The main theoretical results are illustrated with numerical simulations. 相似文献
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Xiwei LIU~* Tianping CHEN~ 《数学年刊B辑(英文版)》2007,28(6):737-746
In this paper,the authors investigate the synchronization of an array of linearly coupled identical dynamical systems with a delayed coupling.Here the coupling matrix can be asymmetric and reducible.Some criteria ensuring delay-independent and delay- dependent global synchronization are derived respectively.It is shown that if the coupling delay is less than a positive threshold,then the coupled network will be synchronized.On the other hand,with the increase of coupling delay,the synchronization stability of the network will be restrained,even eventually de-synchronized. 相似文献
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Hideaki Matsunaga 《Proceedings of the American Mathematical Society》2008,136(12):4305-4312
For a linear delay differential system with two coefficients and one delay, we establish some necessary and sufficient conditions on the asymptotic stability of the zero solution, which are composed of delay-dependent and delay-independent stability criteria. On the former criterion, the range of the delay is explicitly given.