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学术信息
SEMINARS
Two Topics in Differential Equations
时间  Datetime
2017-07-12 15:00 — 16:00 
地点  Venue
Middle Lecture Room
报告人  Speaker
Prof. Jiazhong Yang
单位  Affiliation
Peking University
邀请人  Host
Yilei Tang
报告摘要  Abstract

I will put two topics in one talk: first, I will give a brief survey, followed by some of our new  results, about piecewise differential equations. Some personal viewpoint and remarks on this subject will also be given. Instead of presenting technical details, I will give a geometric explanation   about our results. In the second part of my talk, I will explain our new results of the Lienard   systems, illustrating a systematic conclusion obtained very recently on hyper-elliptic limit cycles.