Arora V.2025-02-1720221http://dx.doi.org/10.1134/S1995080222110063https://idr.iitbbs.ac.in/handle/2008/3843Abstract: We consider functions of the type (Formula presented.) from a family of all analytic and univalent functions in the unit disk. The aim of this article is to investigate the bounds of the difference of moduli of initial successive coefficients, i.e.(Formula presented.) and for some subclasses of analytic univalent functions. In addition, we found that all the estimations are sharp in nature by constructing some extremal functions. � 2022, Pleiades�Publishing,�Ltd.enconvex functions; spirallike functions; starlike functions; successive coefficients; univalent functionsArticle