中科院数学与系统科学研究院
数学研究所
学术报告会
报告人:谢俊逸 博士 (Rennes University)
题 目:Algebraic actions of discrete groups: the p-adic method
时 间:06.23(星期二), 16:30--17:30
地 点:数学院南楼N913室
摘 要:With Serge Cantat, we study groups of automorphisms and birational transformations of quasi-projective varieties by p-adic methods. For instance, we show that if SLn(Z) acts faithfully on a complex quasi-projective variety X by birational transformations, then dim(X) ≥ n − 1 and X is rational if dim(X) = n−1.