SOME PROPERTIES OF CERTAIN CLASS OF MULTIVALENT FUNCTIONS WITH NEGATIVE COEFFICIENTS
The aim of this paper is to derive several interesting properties of a new class denoted by W-p,lambda(n) (alpha, gamma) consisting of analytic functions with negative coefficients for which coefficient inequalities, distortion theorems, closure theorems are determined. Furthermore, integral operators and modified Hadamard products of several functions belonging to the class W-p,lambda(n) (alpha, gamma) are studied. The results are obtained using a generalized Salagean operator and they are improvement of a known results.
negative coefficient analytic functions modified hadamard product generalized salagean operator extreme points