A new class of analytic functions with negative coefficients

摘要

A subclass Pγ(n,λ,α,r) of analytic functions in the unit disc is introduced. The object of the present paper is to show some properties of functions belonging to the class Pγ(n,λ,α,r). Further, the distortion inequalities for fractional calculus of functions in Pγ(n,λ,α,r) are given.