Boletim da Sociedade Paranaense de Matemática (Oct 2020)
Mapping properties of certain linear operator associated with hypergeometric functions
Abstract
The main object of the present paper is to nd some su¢ cient conditions in terms of hypergeometric inequalities so that the linear operator denoted by Ha;b;c : maps a certain subclass of close-to-convex function R (A;B) into subclasses of k-uniformly starlike and k-uniformly convex functions k ST () and k UCV() respectively. Further, we consider an integral operator and discuss its properties. Our results generalize some relevant results.