Third Hankel Determinant for Ma-Minda Bi-univalent Functions

摘要

In this paper, we investigate the third Hankel determinant H3(1) for the class Hσμ(λ,φ)(λ≥ 1,μ≥ 1) of Ma-Minda bi-univalent functions in the open unit disk D ={z :z<1} and obtain the upper bound of the above determinant H3(1).