On A Certain Class of Multivalent Functions Defined By Hadamard Product

Abstract

The object of this paper to study the class WH(n,p,α,λ,θ,q) of multivalent functions defined by Hadamard product in the open unit disk U={z∈C:|z|<1}. We obtain some geometric properties for this class, like, coefficient estimate, closure theorem, extreme points, distortion theorem and modified Hadamard products.