ON CERTAIN SUBCLASSES OF ANALYTIC FUNCTIONS DEFINED BY GENERALIZED DIFFERENTIAL OPERATORS

摘要

The object of the present paper is to derive several interesting properties of certain sub- classes of analytic functions. Various results including coefficient estimates, growth and distortion theorems, extreme points, closure theorems, convolution, integral operator and radii of starlikeness, convexity and close-to-convexity are obtained. Furthermore, integral means are also given.