Subclasses of bi-univalent functions defined by convolution
Affiliation:
Department of Mathematics, Faculty of Science, Damietta University, New Damietta 34517, Egypt
Abstract:
In this paper, we introduced two new subclasses of the function class Σ of bi-univalent functions analytic in the open unit disc defined by convolution. Furthermore, we find estimates on the coefficients ∣a2∣ and ∣a3∣ for functions in these new subclasses.