An Investigation on a Subclass of p-Valently Starlike Functions in the Unit Disc

Let Ap denote the class of functions of the form f (z )= z p +ap+1z p+1 +ap+2z p+2 + ··· which are regular and p-valent in the open unit disc D = {z : |z| < 1} .L etMp(α) be the subclass of Ap consisting of functions f (z) which satisfy Re z f � (z) f (z) <α ,