New results on coefficient estimates for subclasses of bi-univalent functions related by a new integral operator

In the present paper, we introduce two new subclasses of the function class \sum of bi-univalent functions defined in the open unit disc U. Furthermore, we find estimates on the coefficients |a_۲| and |a_۳| for functions in these new subclasses.

Keywords:

Bi-univalent function , Analytic function , Coefficient bounds , starlike and convex function