ON CRITERIA FOR STARLIKENESS AND CONVEXITY OF ANALYTIC FUNCTIONS

被引：0
|
作者：
Vikramaditya Singh
Nikola Tuneski
机构：
[1] Faculty of Mechanical Engineering
[2] Karpos Ⅱ b.b.
[3] 1000 Skopje
[4] Republic of Macedonia
来源：
Acta Mathematica Scientia | 2004年 / 04期
关键词：
Starlike; convex; criteria; Fekete-Szego;
D O I：
暂无
中图分类号：
O174 [函数论];
学科分类号：
070104 ;
摘要：
In this paper the authors study （1-γ + zf（?）（z）/f’（z））/（zf’（z）/f（z）） as a criteria for starlikeness and convexity. Sharp upper bound of |α2| and of the Fekete-Szego functional |α3-μα22| is given for a class of analytic functions defined by using this expression.
引用
收藏
页码：597 / 602
页数：6
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