Coefficient bounds for certain two subclasses of bi-univalent functions

Abstract

In this paper, coefficient bounds of bi-univalent functions in certain two subclasses, which are defined by subordination are estimated. Some special outcomes of the main results are also presented. Moreover, it is remarked that the given bounds improve and generalize some of the pervious results.

Keywords

• univalent functions
• bi-univalent functions
• coefficient bounds
• faber polynomial expansion
• subordination