Coefficient Estimates on A New Subclasses Of Bi-Univalent Functions Defined Using Opoola Differential Operator And Associated With Quasi-Subordination

In this research paper, we investigate new subclasses R_∑▒‍^(μ,q,m) (λ,ϕ,γ,β,t) and UAR_∑▒‍^(λ,q,m) (ϕ,γ,β,t) of bi-univalent functions defined on the unit disk Δ in the complex plane using Opoola differential operator and quasi-subordination. Further, we find upper bounds of |a_2 | and |a_3 | for functions in these new subclasses.