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报告题目:一类离散时间随机系统的依概率稳定性和随机镇定
报告人:尹居良教授
单位:广州大学
时间:2018年7月2日周一下午4:00
地点:中心楼二楼欧洲杯买球官方官网教育部重点实验室会议室
邀请人/主持人:钱春江教授、翟军勇教授
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欢迎各位老师和研究生参加!
报告摘要:
In this talk, I will introduce some results on asymptotic stability in probability and stabilization designs of discrete-time stochastic systems with state-dependent noise perturbations. Our work begins with a lemma on a special discrete-time stochastic system for which almost all of its sample paths starting from a nonzero initial value will never reach the origin subsequently. This motivates us to deal with the asymptotic stability in probability of discrete-time stochastic systems. A stochastic Lyapunov theorem on asymptotic stability in probability is proved by means of the convergence theorem of supermartingale. An example is given to show the difference between asymptotic stability in probability and almost surely asymptotic stability. Based on the stochastic Lyapunov theorem, the problem of asymptotic stabilization for discrete-time stochastic control systems is considered. Some sufficient conditions are proposed and applied for constructing asymptotically stable feedback controllers.
报告人简介:
广州大学百人计划教授,统计学专业博士生导师,澳大利亚Deakin大学荣誉教授,广东省“千百十”人才工程培养对象。2003年毕业于中山大学数学学院概率论与数理统计专业,获理学博士学位,2003-2005年在南开大学数学学院做博士后研究。1997年-2017年在暨南大学工作,2009年晋升教授,2014年被评为暨南大学杰出青年学者。曾任广东省现场统计协会秘书长和常务理事。主要从事随机分析、随机控制、数理统计学、保险精算学、金融数学等领域的教学与研究工作。迄今为止,参编、参撰教材和著作各1部,先后主持省部级科研项目7项、国家自然科学基金项目2项,正式发表各类学术论文近50篇,其中被SCI和SSCI索引收录近30篇,其中有2篇论文入选ESI高被引论文。2007年和2008年获广东省统计科学研究成果一等奖和全国优秀统计成果三等奖。