Subclass of Multivalent Functions Defined by using Differential Operator

Abstract

In the present paper, we introduce a subclass K_p (γ,β,m,λ,A,B,α) of multivalent analytic functions in the open unit disc U. We study coefficient inequalities, closure theorem , radii of starlikeness, convexity and close-to-convexity. We also obtain weighted mean, arithmetic mean and linear combination