ON SOME NEW SUBCLASSES OF BI-UNIVALENT FUNCTIONS DEFINED BY SALAGEAN OPERATOR

Abstract

In this work, two new subclasses of bi-univalent functions MΣn(α, λ) and MΣn(λ, β) using the Salagean differential operator are discussed. The coefficients estimates for |a2| and |a3| and the upper bounds for the Fekete-Szego functionals for functions belonging to the classes are obtained. Results obtained generalized some known results.Mathematical Subject Classification (2010): 30C45.