报告题目 (Title):Covering of groups, graphs and surfaces (群,图及曲面的覆盖)
报告人 (Speaker):李才恒 教授(南方科技大学)
报告时间 (Time):2023年11月24日(周五) 上午10:00
报告地点 (Place):宝山校区C113
邀请人(Inviter):孟沆洋
报告摘要: I will discuss 2-generated groups acting on graphs, surfaces and maps, associated with their quotient and covering. Some interesting examples will be presented.