Fekete-Szegö problem for two new subclasses of bi-univalent functions defined by Bernoulli polynomial

This investigation deals with two new subclasses of analytic and bi-univalent functions defined by Bernoulli polynomial. In this paper, coefficient estimation and Fekete-Szegö problems are solved for these newly defined function subclasses. In addition, certain remarks are indicated for the subclasses of bi-starlike and bi-convex functions.

کلیدواژه ها:

Bi-univalent function ، coefficient estimates ، Fekete-Szegö functional ، Bernoulli polynomials