On the Coefficients of Quasi-Convex Functions

Abstract

Abstract In this paper we introduce and investigate the class of T (λ, β, A, B) that we call the class of quasi-starlike and quasi-convex functions with respect to the values of the parameter λ. Also we define the class K (λ, β, µ, m, A, B) which is satisfy non-homogeneous Cauchy-Euler differential equation. We obtain coefficient bounds for the functions belonging the above classes.