Free abelian group actions on normal projective varieties: sub-maximal dynamical rank case

发布者:文明办作者:发布时间:2019-06-17浏览次数:900


主讲人:李思辰 新加坡国立大学


时间:2019年6月21日10:00


地点:3号楼301


举办单位:数理学院


内容介绍:Let X be a normal projective variety of dimension n≥3 and G an abelian subgroup  of Aut(X) such that all elements of G\{id} are of positive entropy. Dinh and  Sibony proved that G is a free abelian group with rank(G)≤ n-1. The maximal rank  case has been well understood by Zhang. We characterize the pair (X, G) such  that rank(G) = n-2. This is based on joint work with Fei Hu.