Comptes Rendus de L'Academie Bulgare des Sciences, vol.73, no.1, pp.13-21, 2020 (SCI-Expanded)
© 2020 Academic Publishing House. All rights reserved.Let A be the class of analytic functions f with f(0) = 0 and f′(0) = 1 in the open unit disk U. Applying the fractional derivative Dz λf of order λ for f ∈ A, a new subclass A(α, β; λ) of A with 0 ≦ α < 1, β > 1 and 0 ≦ λ < 1 is considered. The object of the present paper is to discuss some interesting properties of this class of functions.