报告人：  王诗宬 院士（北京大学数学科学学院）

题    目： (1) 三维流形上体积和映射度

  (2) 始于手性的漫游 

时    间： 11.24(星期四), 14：30--16：30

                   (14:00-14:30为茶点时间, 地点: 思源楼509房间)

地    点：晨兴数学中心110室

摘要：

(1) 三维流形上体积和映射度

We will explain that how volumes of representations are applied to the study of the finiteness of mapping degrees on 3-manifolds. The talk will start from the Thurston's picture of 3-manifolds, and the definitions and properites of volumes of representations.

(2) 始于手性的漫游 

This survey talk records an unguided mathematical tour by topologists at Peking University and their collaborators in the last ten years. The tour started from research on chirality and, attracted by questions around attractors, led to a zigzag path across topology and dynamics. People who joined in this tour at various stages include Ding Fan, Jiang Boju, Liu Yi, Ni Yi, Pan Jianzhong, Sun Hongbin, Wang Shicheng, Yao Jiangang, Zheng Hao and Zhou Qing. Conversations with Robert Edwards, Wen Lan, J. Hillmann and many others, added to the twists and turns that made the trip more fun.