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New results for exponential synchronization of linearly coupled ordinary differential systems
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作者 童评 陈士华 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第5期82-89,共8页
This paper investigates the exponential synchronization of linearly coupled ordinary differential systems. The intrinsic nonlinear dynamics may not satisfy the QUAD condition or weak-QUAD condition. First, it gives a ... This paper investigates the exponential synchronization of linearly coupled ordinary differential systems. The intrinsic nonlinear dynamics may not satisfy the QUAD condition or weak-QUAD condition. First, it gives a new method to analyze the exponential synchronization of the systems. Second, two theorems and their corollaries are proposed for the local or global exponential synchronization of the coupled systems. Finally, an application to the linearly coupled Hopfield neural networks and several simulations are provided for verifying the effectiveness of the theoretical results. 展开更多
关键词 ordinary exponential linearly synchronized intrinsic satisfy symmetric infinitely manifold proof
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一类带时滞的无限区间分数阶变分问题
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作者 吕恒金 冯育强 童评 《系统科学与数学》 CSCD 北大核心 2014年第5期612-619,共8页
主要研究一类带有时滞的无限区间分数阶变分问题,讨论的目标泛函表达式为其定义在C^1[a—T,+∞]上,并且T>0,α∈(0,1),_a^CD_x~α(x)在{a,+∞}存在且连续.利用分数微积分的性质,得到了目标泛函取最优时的Euler-Lagrange方程和横截条... 主要研究一类带有时滞的无限区间分数阶变分问题,讨论的目标泛函表达式为其定义在C^1[a—T,+∞]上,并且T>0,α∈(0,1),_a^CD_x~α(x)在{a,+∞}存在且连续.利用分数微积分的性质,得到了目标泛函取最优时的Euler-Lagrange方程和横截条件,并通过两个例子验证结果的有效性. 展开更多
关键词 分数阶微积分 变分问题 时滞 无穷区间.
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