Bounds for initial maclaurin coefficients for a new subclasses of analytic and M-fold symmetric BI-univalent functions

Abstract

In the present paper, we introduce and study two new subclasses of the function class ?m consisting of analytic and m-fold symmetric bi-univalent functions in the open unit disk U. We establish upper bounds for the initial coefficients |am+1| and |a2m+1| for functions in these subclasses. Certain special cases are also indicated.