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Abstract: In this paper we provide a brief survey on recent research on multi-agent systems. We focus on results in three areas of the research, namely, estimation and filtering, intervention by external means, and interactive control. [Copyright &y& Elsevier]

A neighbour-based coordination scheme is proposed for a multi-agent system with multiple leaders. Under assumptions of the connectivity of the interconnection topology and a simple first-order dynamics model for each mobile agent, the results show that all the agents will flock to the polytope region formed by the leaders. [ABSTRACT FROM AUTHOR]

Abstract: This paper is concerned with the consensus problem in directed networks with double-integrator dynamics and non-uniform time-varying communication delays. With the help of Lyapunov–Razumikhin function a necessary and sufficient condition is presented in the case when the delays are non-uniform and time-varying. Simulation results are provided to illustrate the theoretical results. [Copyright &y& Elsevier]