INCLUSION AND NEIGHBORHOOD PROPERTIES OF A CERTAIN SUBCLASSES OF P-VALENT FUNCTIONS WITH NEGATIVE COEFFICIENTS

被引:4
|
作者
El-Ashwah, R. M. [1 ]
机构
[1] Mansoura Univ, Fac Sci, Dept Math, Mansoura 35516, Egypt
关键词
Analytic functions; (n; theta)-neighborhood; non-homogenous differential equation; ANALYTIC-FUNCTIONS; MULTIVALENT-FUNCTIONS; OPERATORS;
D O I
10.2298/FIL0903001E
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
By means of Ruscheweyh derivative operator, we introduced and investigated two new subclasses of p-valent analytic functions. The various results obtained here for each of these function class include coefficient bounds and distortion inequalities, associated inclusion relations for the (n, theta)-neighborhoods of subclasses of analytic and multivalent functions with negative coefficients, which are defined by means of non-homogenous differential equation.
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页码:1 / 13
页数:13
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