报告题目：The multi-degree of coverings on Lie groups
报 告 人：段海豹（中国科学院）
报告时间：2020.1.5 09:00-09:50
报告地点：数学中心 学术报告厅 （至善楼 234）
主 持 人：吴杰
摘 要：
We associate to each covering map of simple Lie groups a sequence of integers, called the multi-degree of the covering; develop a unifed method to evaluate the sequence; and apply the results to solve two extension problems with origin in mathematical physics.
