Some Connections between Class ?- and α-Convex Functions

الملخص EN

The class ? ( λ , μ ) of normalized analytic functions that satisfy | ( z / f ( z ) ) 1 + μ · f ′ ( z ) − 1 | < λ for all z in the open unit disk is studied and sufficient conditions for an α-convex function to be in ? ( λ , μ ) are given.