Construction of Hypergeometric-Appell Polynomials Family via Umbral Calculus Framework

Abstract: The umbral methods are used to reformulate the theoretical framework of special functions and provide powerful techniques for uncovering new extensions and relationships among these functions. This research article introduces an innovative class of special polynomials, specifically the hypergeometric-Appell polynomials. The fundamental attributes of this versatile family of special polynomials are outlined, including generating relations, explicit representations, and differential recurrence relations. Certain particular examples that belong to the class of hypergeometric-Appell polynomials are also considered. This article aims to reinforce the broad applicability of the umbral approach to address complex mathematical challenges and contribute to various scientific and engineering endeavors.