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.

کلیدواژه ها:

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