中科院数学与系统科学研究院

数学研究所

学术报告

代数几何研讨班

报告人：刘小雷 副教授（大连理工大学）   

题  目：On the sharp lower bounds of modular invariants

时  间：2022.06.07（星期二）上午9:30-11:00

地  点：腾讯会议  548-867-182

摘  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.