On a certain subclass of analytic functions involving Sălăgean operator and Ruscheweyh derivative.

The main object of this paper is to study some properties of certain subclass of analytic functions in the open unit disc which is defined by the linear operator ..., where Rnf(z) is the Ruscheweyh derivative, Snf(z) the Salagean operator and ... is the class of normalized analytic functions with A1 = A. These properties include a coefficient inequality, distorsion theorem and extreme points of differential operator. We also discuss the boundedness properties associated with partial sums of functions in the class .... [ABSTRACT FROM AUTHOR]