Coefficient Estimates for λ–Bazilevič Functions of Bi-univalent Functions

In this paper, we introduce two new subclasses of the function class Sigma of lambda-Bazilevivc functions of bi-univalent functions defined in the open unit disc. We find estimates on the coefficients |a_2| and |a_3| for functions in these new subclasses. The results presented in this paper would generalize some recent works of Xu et al. and Ali et al.