On Second Hankel Determinant For Starlike And Convex Functions

A denote the class of functions which are analytic, normalized and univalent in the open disc D= Z: |Z | < 1 . The important subclasses of A are starlike and convex functions which are denoted by S^∗(γ ) and C ( γ). This paper focuses on attaining sharp upper bounds for the functional |a₂a₃ −a3² | for univalent functions.