报告题目：Discovering hierarchical structures in weighted graphs using Ricci-flow method

报告人：清华大学林勇教授

报告时间：2020-10-7 9:00-10:00

报告地点：腾讯会议 ID：156 770 416，密码: 24680       

报告摘要：      

We study the existence of solutions of Ricci flow equations of Ollivier-Lin-Lu-Yau curvature defined on weighted graphs. Our work is motivated by a paper of Ni etc. in which the discrete time Ricci flow algorithm has been applied successfully as a discrete geometric approach in detecting complex networks. Our main result is the existence and  uniqueness theorem for solutions to a continuous time normalized Ricci flow on graphs. This is a joint work with Bai，Lu, Wang and Yau.

数学与统计学院

2020年10月6日