主题： Discrete Integrable Systems and their Mathematical Structure 时间：9月17日 15:10-17:10 地点：15号楼518 主持人：杨军 报告人简介： Professor Pavlis Xenitidis is from the University of Liverpool Hope University. He has been dedicated to discrete integrable systems and solitary wave theory for many years. He has published over 30 papers, many of which have been published in Journal of Physics A, Proceedings of the Royal Society A, Journal of Integrable Systems. 讲座简介： In this talk, I will focus on discrete integrable systems and I will describe their fundamental integrability properties, such as Lax pairs, Bäcklund transformations, solution solutions, and symmetries. I will extend these concepts to discrete integrable systems with noncommutative variables and discuss their similarities and differences to their commutative counterparts.