On the Fekete–Szegö Problem for Certain Subclass of Analytic Functions

Geometric properties and neighborhood results for a subclass of analytic functions involving Komatu integral

“…Let H denote the class of analytic function in the unit disk ∆ = {z : z ∈ C, |z| < 1} on the complex plane C. Let A denote the subclass of H consisting of functions f (z) of the form f (z) = z + ∞ n=2 a n z n , ( 1) which are analytic in the open unit disk ∆ = {z : z ∈ C, |z| < 1}. Also let S be the subclass of A consisting of all univalent functions in ∆ normalized by f (0) = f (0) − 1 = 0.…”