报告题目：Collective dynamics of multi-agent networks with measurement noise

报告人：孙永征教授（中国矿业大学）

报告时间： 2020年10月27日（星期二）上午10:00-11:00

报告地点：腾讯视频会议（线上）

会议 ID：873 779 198

校内联系人：董久刚

报告摘要：Recently, the distributed coordinated control of multi-agent systems has fascinated more and more researchers from numerous disciplines due to its broad applications in many fields. To reveal the inherent mechanism of multi-agent systems, some models have been introduced. Noise is ubiquitous in natural and man-made systems, which means that the motion of the group is inevitably subjected to noise perturbation in the environment. In noisy environment, each agent may not measure its neighbors' states accurately, leading to more complicated interactions among agents. Because of the intrinsic nature of noise, it is always regarded as mischievous, i.e.,  noise will destroy order or add disorder in  natural and artificial systems. Additive and multiplicative noise has been extensively used to model the measurement uncertainties in multi-agent systems, and then, the deterministic multi-agent system becomes a stochastic system. It was reported that  ordered collective motion  can occur only when the noise  intensity  is sufficient small. The order parameter  of collective motion is a decreasing function of the noise intensity, indicating that noise can destroy the ordered collective motion.  However, some investigations have shown that noise may enhance collective behavior of networked systems. It was shown that the multi-agent system can achieve the consensus only via noise-based coupling.   In this talk, we report our results on the collective behavior of multi-agent networks with measurement noise including: asymptotical consensus,  finite-time consensus, fixed-time consensus, flocking of Cucker-Smale systems and directional switching of swarming locusts.

报告人简介：孙永征，博士，教授，中国矿业大学数学学院科研副院长。2010年毕业于复旦大学数学科学学院获理学博士学位。多次应邀到牛津大学数学研究所、剑桥大学牛顿数学研究所、利兹大学数学学院、国际理论物理中心、复旦大学数学科学学院等国内外著名高校及学术机构访问并做学术报告。主要研究兴趣：复杂网络同步与控制、群集动力学、生物数学等。以第一作者及通讯作者在Physical Review Letters, SIAM Journal on Applied Mathematics, Chaos, Physical Review E等数学、物理及非线性领域著名国际学术期刊发表SCI检索论文40余篇。