On the Hankel Determinant of m-fold Symmetric Bi-Univalent Functions Using a New Operator

In this article, we aim to describe a new operator J_(s,a,?)^(?,?) via convolution. Moreover, we aim to present a new subclass C_?m (?;?) related to m-fold symmetric bi-univalent functions in the open unit disk ?={z?C?|z| ? 1 }. Finally, an estimate related to the Hankel determinant for functions in C_?m (?;?) are given.