Certain subclasses of bi-univalent functions satisfying subordinate conditions
Certain subclasses of bi-univalent functions satisfying subordinate conditions
In this paper, we introduce and investigate each of the following subclasses:of bi-univalent functions, ϕ is an analytic function with positive real part in the unit disk D, satisfying ϕ(0) = 1, ϕ (0) > 0, and ϕ(D) is symmetric with respect to the real axis.We obtain coefficient bounds involving …