ICM邀请报告——Surface automorphisms and virtual homological eigenvalues
                    
                  
                  
                  
                    报告人:Yi Liu (Peking University)
 
                    时间:2022-07-09     19:15-20:00
  
                    地点:Room 1560, Sciences Building No. 1
                   
                  
                    Abstract: I will explain my recent proof on why every pseudo-Anosov surface automorphism can be lifted to some finite cover, such that some homological eigenvalue of the lifted automorphism lies outside the complex unit circle.