报告题目 (Title)：Two applications of eta-invariant（Eta不变量的两个应用）
报告人 (Speaker)：张伟平 院士（陈省身数学研究所）
报告时间 (Time)：2023年4月21日(周五) 10:00-11:00
报告地点 (Place)：校本部E408
邀请人(Inviter)：席东盟、李晋、张德凯
主办部门：理学院数学系
报告摘要：The eta-invariant introduced by Atiyah-Patodi-Singer has played important roles in geometry, topology, number theory and mathematical physics. In this talk, we describe two simple applications. One on Rokhlin congruences (dating back to 1994). The other joint with Zizhou Tang, solving a problem of Berard-Bergery and Besse dating back to 1970s.
