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延迟积分微分方程线性多步方法的稳定性分析
引用本文:刘建国,姚金然,卢菁菁.延迟积分微分方程线性多步方法的稳定性分析[J].数学理论与应用,2008,28(4):45-48.
作者姓名:刘建国  姚金然  卢菁菁
作者单位:[1]中南大学数学科学与计算技术学院,长沙410075 [2]黄山学院数学系,黄山245041
摘    要:考虑带常延迟的延迟积分微分方程线性系统零解的渐近稳定性,本文采用拉格朗日插值的线性多步方法,探讨了系统数值方法的线性稳定性。证明了所有A-稳定且强零-稳定的Pouzet型线性多步方法能够保持原线性系统的延迟不依赖稳定性。

关 键 词:延迟积分微分方程  Pouzet型线性多步法  拉格朗日插值  渐近稳定性

Stability Analysis of Linear Multistep Methods for Delay Integro-Differential Equatioins
Liu Jianguo Yao Jinran Lu Jingjing.Stability Analysis of Linear Multistep Methods for Delay Integro-Differential Equatioins[J].Mathematical Theory and Applications,2008,28(4):45-48.
Authors:Liu Jianguo Yao Jinran Lu Jingjing
Institution:Liu Jianguo1 Yao Jinran2 Lu Jingjing1(1.School of Mathematical Science , Computing Technology,Central South University,Changsha,410075)(2.Department of Mathematics,Huangshan College,Huangshan,245041)
Abstract:For a linear system of delay integro-differential equations with a constant delay whose zero solution is asymptotically stable,this paper deals with the linear stability of numerical methods for the system.The adaptation of linear multistep methods with a Lagrange interpolation is considered.It is proven that every A-stable,strongly zero-stable linear multistep methods of Pouzet type can preserve the delay-independent stability of the underlying linear systems.
Keywords:Delay integro-differential equations Linear multistep methods of Pouzet type Lagrange interpolation Asymptotic stability  
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