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解析函数族的近于凸性
引用本文:郝小娜. 解析函数族的近于凸性[J]. 湖北大学学报(自然科学版), 2011, 33(3): 336-339
作者姓名:郝小娜
作者单位:湖北大学数学与计算机科学学院,湖北武汉,430062
摘    要:鉴于先前Owa得到的解析函数f(z)=z+∞∑n-2αnzn,(z∈U)属于近于凸函数族C(α)(0≤α<1)的一 些充分条件,主要目的是找出函数f(z)属于新定义的近于凸函数族C1(α)(α>1)的某些充分条件.

关 键 词:解析函数  单叶函数  从属原理  星形函数  凸函数  近于凸函数

Close-to-convexity of certain analytic functions
HAO Xiaona. Close-to-convexity of certain analytic functions[J]. Journal of Hubei University(Natural Science Edition), 2011, 33(3): 336-339
Authors:HAO Xiaona
Affiliation:HAO Xiaona (School of Mathematics and Computer Science, Hubei University, Wuhan 430062, China)
Abstract:Owa had obtained several sufficient conditions for the close-to-convex class C(a)(0≤n〈1) of analytic functios f(z)=z+∑x-2 ∞ anz^n,(z∈U) long before. On the base of those, the main object of the present paper was to derive certain sufficient conditions for the new defined close-toconvex class C1 (a) (a〉1)of the functions f(z).
Keywords:analytic functiom univalent function  subordination principle  starlike functiomconvex function  close-to-convex function
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