On (p, q)-Quantum Calculus Involving Quasi-Subordination

摘要

Let (p, q) ∈ (0, 1). Let the function f be analytic in |z| < 1. Further, let the (p, q) be differential operator defined as {formula}, |z| < 1. In the current investigation, the authors apply the [p, q)-differential operator for few subclasses of univalent functions defined by quasi-subordination. Initial coefficient bounds for the defined new classes are obtained.