时间：2022年6月2日（星期四）10:00-11:00

Time: 10:00-11:00, Thursday, June 2nd, 2022

会议号/ZOOM ID：938 5377 3150

主持人：陈国度博士

Host：Dr. Guodu Chen, Institute for Theoretical Sciences

主讲人：上海数学中心/美国国家数学科学研究所 韩京俊博士

Speaker：Dr. Jingjun Han, Shanghai Center for Mathematical Sciences/MSRI

报告题目/Title：Birational boundedness of rationally connected log Calabi-Yau pairs with fixed index

主讲人介绍/Biography：

Jingjun Han is a Young Investigator (on leave) at Shanghai Center for Mathematical Sciences, Fudan University, and an offsite Mathematical Sciences Research Institute (MSRI)-Simons postdoctoral fellow supervised by Prof. Christopher Hacon at the University of Utah. He received Ph.D. in July 2018 from Beijing International Center for Mathematical Research, Peking University under the supervision of Prof. Gang Tian and Prof. Chenyang Xu. He was a J.J. Sylvester Assistant Professor during 2018-2021 in the Department of Mathematics, Johns Hopkins University.

报告摘要/Abstract：

In this talk, Dr Han will introduce McKernan-Prokhorov's conjecture on the boundedness of rationally connected Calabi-Yau varieties. This conjecture is a natural generalization of the Borisov–Alexeev–Borisov (BAB) Conjecture which was solved by Birkar. He will show that the set of rationally connected projective varieties X of a fixed dimension such that (X,B) is klt, and -l(K_X+B) is Cartier and nef for some fixed positive integer l, is bounded modulo flops. This is a joint work with Chen Jiang.