报告问题 (Title)：Banach Spaces with the Ball Covering Property（具有球笼罩性子的Banach空间）

报告人 (Speaker)：郑本拓（The University of Memphis）

报告时间 (Time)：2024年5月16日(周四) 9:30

报告所在 (Place)：校本部GJ303

约请人(Inviter)：席东盟、李晋、张德凯、吴加勇

主理部分：理学院数学系

报告摘要：A Banach space is said to have the ball covering property if its unit sphere can be covered by countably many open balls off the origin. The ball covering property is a property that has close relationships with the topological properties and geometric properties of Banach spaces. In this talk, we will give a review of the historical literature and present some recent advances on this topic. Open problems will be proposed, and approaches will be discussed.