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时滞具周期系数差分方程零解全局渐近稳定的充要条件
引用本文:沈会焘,李雪臣,苗宝军.时滞具周期系数差分方程零解全局渐近稳定的充要条件[J].河南师范大学学报(自然科学版),2013,41(2):27-30.
作者姓名:沈会焘  李雪臣  苗宝军
作者单位:许昌学院数学与统计学院,河南许昌,461000
基金项目:河南省教育厅自然科学基金,河南省基础与前沿研究项目
摘    要:考虑非线性时滞具周期系数差分方程xn+1-xn+sum (pi,nxn-ki) from s to i=1=f(n,xn-l1,xn-l2,…,xn-lm),n=0,1,2,…,其中{pi,n}为T周期正数列,即pi,n+T=pi,n,ki=siT,ki,si,s,m,T为自然数.通过讨论对应的齐次线性差分方程的性质,获得了关于零解全局渐近稳定的充要条件.

关 键 词:全局渐近稳定性  差分方程  周期系数

Global Asymptotic Stability for Delay Difference Equationswith periodic coefficients
SHEN Huitao , LI Xuechen , Miao Baojun.Global Asymptotic Stability for Delay Difference Equationswith periodic coefficients[J].Journal of Henan Normal University(Natural Science),2013,41(2):27-30.
Authors:SHEN Huitao  LI Xuechen  Miao Baojun
Institution:(School of Mathematics and Statistics,Xuchang University,Xuchang 461000,China)
Abstract:This paper considers the nonlinear delay difference equations with periodic coefficients xn+1-xn+sum (pi,nxn-ki) from s to i=1=f(n,xn-l1,…,xn-lm),n=0,1,2,…,where {pi,n} is a nonnegative sequence with period T,i.e.pi,n+T=pi,n,ki=siT,ki,si,s,m,T are positive integers.By discussing the properties of the correspondence homogeneous linear delay difference equation,they obtain the sufficient and necessary condition for the global asymptotic stability of zero solution.
Keywords:global asymptotic stability  difference equation  periodic coefficients
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