Properties of Generalized Derivative Operator to A Certain Subclass of Analytic Functions with Negative Coefficients

Abstract

The main object of this paper is to introduce and study the new subclasses ,n ( , , , ) m q    T and ,n ( , , , ) m q    C of analytic functions defined by generalized derivative operator with negative coefficients in the unit disk. The results presented here include coefficient estimates, extreme points, growth and distortion properties and integral operators for the aforementioned subclasses.