ON NEW SUBCLASSES OF BI-UNIVALENT FUNCTIONS DEFINED BY GENERALIZED SÂLÂGEAN DIFFERENTIAL OPERATOR

Abstract

The aim of this investigation is to introduce two new subclasses of the class related with the generalized Sal agean differential operator and find estimates on the coefficients ja2j and ja3j for functions in these new subclasses. Moreover, we give some interesting results by using the relationship between Sal ageanís differential operator and generalized Salagean differential operator.