中科院数学与系统科学研究院
数学研究所
动力系统研究中心
学术报告会
报告人：Prof. Walter Bergweiler（Kiel University，Germany）
题 目：On Goldberg's constants
时 间：2016.09.07（星期三）, 16:00-17:00
地 点：数学院南楼N913室
Abstract：
Goldberg showed that there is an absolute constant A such that if all zeros and 1-points of a function holomorphic in the unit disk are in the disk of radius A, then the function has the same number of zeros and 1-points. He also introduced several related constants. We discuss this constants and in particular discuss their relation to hyperbolic geometry; This is joint work with Alexandre Eremenko.
