A subclass of harmonic univalent functions defined by means of differential subordination

Abstract

The aim of this paper is to introduce a new class of harmonic functions defined by use of a subordination. We find necessary and sufficient conditions, radii of starlikeness and convexity and compactness for this class of functions. Moreover, by using extreme points theory we also obtain coeffcients estimates, distortion theorems for this class of functions. On the other hand, some results (corollaries) on the paper are pointed out.