平面区域的对数导数单叶性内径

On the inner radius of univalency by pre-Schwarzian derivative

研究了对数导数意义下平面区域的单叶性内径,讨论了对数导数意义下单叶性内径的相关性质,得到了角域的对数导数单叶性内径的上界估计。

The inner radius of univalency of hyperbolic domains by pre-Schwazian derivative is studied,Some properties for the norm of pre-Schwarzian derivative and inner radius are established. As an application,the bounds of inner radius for angular domains are obtained.