研究网络上复杂耦合系统的同步性问题。将复杂耦合系统建立在一个有向图上,用图论中的方法研究复杂耦合系统的同步性。运用图论给出构造网络上复杂耦合系统Lyapunov函数的方法,利用得到的Lyapunov函数,分别给出两个耦合动力系统同步和指数同步的充分条件。这些充分条件与用来描述驱动系统与响应系统的有向图的拓扑结构密切相关。
The synchronization of complex coupled systems on networks is investigated. The complex coupled systems on networks are first described as a directed graph, then the synchronization of complex coupled systems on networks is studied by the graph theory. A systematic method for constructing a global Lyapunov function for the complex coupled systems on networks is provided by using the results from graph theory. And by using the Lyapunov function constructed, some sufficient conditions of synchroniza- tion and exponential synchronization are obtained, which have close relation to the topology property of the corresponding directed graph of the drive systems and response systems.