Planar polynomial differential systems with a global center

讲座时间 Datetime: 2022年6月17日，星期五，9:00—10:00

地点 Venue: 腾讯线上会议：130-276-531

主持人 Host：王少卿

报告人 Speaker: 肖冬梅

单位 Affiliation:上海交通大学

报告摘要 Abstract:

In this talk, we will introduce the characterization on planar polynomial differential systems having a global center, that is, every orbit of the system is a periodic orbit in the plane. Further, we will give algebraic sufficient and necessary conditions for potential systems and Lienard systems which have a global center, respectively.  Last we will discuss some related problems. This is based on a joint work with Hongjin He.