主  讲  人：赵磊 博士（格罗宁根大学）
时      间： 2015年6月4日（周四）10：30-11：30
地      点： 必赢76net线路官网北一区文科楼 708 教室
主 办 单 位： 必赢76net线路官网数学科学学院
内 容 介 绍：In this talk, I will present certain applications of the Goursat-Levi-Civita regularization of the Kepler problem, from dimension 1 to dimension 3. In dimension 1, I will present a simplification of certain study of the forced rectilinear Kepler problem of R. Ortega. From dimension 2, I will focus on the discussion of quasi-collision orbits, which are collisionless orbits pass arbitrarily close to the collisions. I will present a mechanism initiated by Chenciner and Llibre for detecting such orbits and will summarize some results toward such orbits in various three-body problems.