On Certain Subclasses of Meromorphically p-Valent Functions Associated by the Linear Operator Dλn

被引:1
作者
Saif, Amin [1 ]
Kilicman, Adem [1 ]
机构
[1] Univ Putra Malaysia, Dept Math, Serdang 43400, Selangor, Malaysia
来源
JOURNAL OF INEQUALITIES AND APPLICATIONS | 2011年
关键词
MULTIVALENT-FUNCTIONS; STARLIKE;
D O I
10.1155/2011/401913
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The purpose of this paper is to introduce two novel subclasses Gamma(lambda)(n, alpha, beta) and Gamma(lambda)*(n, alpha, beta) of meromorphic p-valent functions by using the linear operator D-lambda(n). Then we prove the necessary and sufficient conditions for a function f in order to be in the new classes. Further we study several important properties such as coefficients inequalities, inclusion properties, the growth and distortion theorems, the radii of meromorphically p-valent starlikeness, convexity, and subordination properties. We also prove that the results are sharp for a certain subclass of functions.
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页数:16
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