报告题目 (Title)：Some extremal problems: Surrounding certain substructures in bipartite graphs （若干极值问题：关于二部图的子结构）
报告人 (Speaker)：李书超 教授（华中师范大学）
报告时间 (Time)：2024年9月12日(周四) 14:00
报告地点 (Place)：腾讯会议 631-100-083
邀请人(Inviter)：杨倩倩
报告摘要：The Turán-type problem is a fundamental problem in extremal graph theory. Naturally, the reverse version of the above problem is to characterize the existence of some substructure in a graph. These problems attract more and more researchers’ attention. In this talk，we first introduce some background in this fields. Then we give some new results of ours on the above two types of problems. At last we will propose some further research problems along this line. This is a joint work with Yifang Hao and Shujing Miao.