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arXiv · 2107.13867

Initial successive coefficients for certain classes of univalent functions

Vibhuti Arora
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Abstract

We consider a family of all analytic and univalent functions in the unit disk of the form $f(z)=z+a_2z^2+a_3z^3+\cdots$. The aim of this article is to investigate the bounds of the difference of moduli of initial successive coefficients, i.e. $\big | |a_{n+1}|-|a_n|\big |$ for $n=1,\,2$ and for some subclasses of analytic univalent functions. We found that all the estimations are sharp in nature by constructing some extremal functions.

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Vibhuti Arora. 2021-07-29. Initial successive coefficients for certain classes of univalent functions. https://arxiv.org/abs/2107.13867

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