Some properties of two subclasses of k-fold symmetric functions associated with Srivastava–Attiya operator

摘要

In the present paper, by using the Srivastava–Attiya operator, we define two new subclasses of k-fold symmetric analytic functions. Some interesting properties of these subclasses such as integral representations, extreme points, close convex hulls and subordinations are obtained, which generalize and refine some previous results.