Subclasses of analytic functions associated with the generalized hypergeometric function

被引:3
作者
Aouf, M. K. [1 ]
Darwish, H. E. [1 ]
机构
[1] Mansoura Univ, Fac Sci, Dept Math, Mansoura 35516, Egypt
关键词
Analytic; Distortion theorem; Hypergeometric function; Modified Hadamard product; NEGATIVE COEFFICIENTS; MULTIVALENT-FUNCTIONS; RUSCHEWEYH DERIVATIVES; UNIVALENT FUNCTIONS;
D O I
10.1016/j.camwa.2007.11.054
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Using the generalized hypergeometric function, we study a class Phi(p)(k)(q, s; A, B, lambda) of analytic functions with negative coefficients. Coefficient estimates, distortion theorem, extreme points and the radii of close-to-convexity and convexity for this class are given. We also derive many results for the modified Hadamard product of functions belonging to the class Phi(p)(k)(q, s: A, B, lambda). (C) 2009 Published by Elsevier Ltd
引用
收藏
页码:356 / 366
页数:11
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