On the sharp lower bounds of modular invariants

2022.06.07（星期二）上午9:30-11:00

点：腾讯会议  548-867-182

要：In this talk, I will introduce the modular invariants of fibrations firstly. Then I will present our work on the sharp lower bounds of modular invariants. If time permits, I hope to explain the relation between modular invariants with fractional Dehn twist coefficients, which is used in obtaining lower bounds of modular invariants. This is a joint work with Prof. Sheng-Li Tan.