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10月21日 宋强博士学术报告(智慧教育学院)

来源:科研作者:时间:2020-10-19浏览:99设置

人:宋强博士

报告题目:Convergent behaviors of coupled harmonic oscillators with signed graph and time delay

报告时间:20201021日(周三)下午1430

报告地点:9-908腾讯会议(会议ID231602365

主办单位:智慧教育学院、科学技术研究院

报告人简介:

 宋强,博士,目前为南通大学副教授、硕士研究生导师,主要从事复杂网络与多智能体系统的协同控制研究,近年来以第一作者身份发表SCI期刊论文10余篇(其中8篇为IEEE Transactions长文、3篇为ESI高被引论文),已主持结题国家自然科学基金面上项2项,为多种国际期刊的长期审稿人(被评为2014IET Control Theory & Applications2016Asian Journal of Control的优秀审稿人),是中国工业与应用数学学会复杂网络与复杂系统专业委员会委员。

报告摘要:

 In this talk, we consider the distributed control problem for a network of harmonic oscillators with delayed velocity coupling and signed graph topology. In sharp contrast to the dynamical behaviors of traditional coupled harmonic oscillators over unsigned graphs, it is found that the considered signed network can exhibit some more interesting behaviors, including bipartite synchronization, stabilization and convergent behavior. Firstly, when the underlying graph is structurally balanced, some necessary and sufficient conditions in terms of coupling strength and time delay are established for reaching bipartite synchronization in the signed network. Then, under the assumption that the signed graph is structurally unbalanced, it is shown that the network state converges either to the origin or to a nontrivial trajectory. The theoretical analysis is illustrated by some numerical examples.


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