Properties of a Linear Operator Involving Lambert Series and Rabotnov Function

Jamal Salah and Bao Q. Li

International Journal of Mathematics and Mathematical Sciences, 2024, vol. 2024, 1-10

Abstract: This work is an attempt to apply Lambert series in the theory of univalent functions. We first consider the Hadamard product of Rabotnov function and Lambert series with coefficients derived from the arithmetic function σn to introduce a normalized linear operator JRα,βz. We then acquire sufficient conditions for JRα,βz to be univalent, starlike and convex, respectively. Furthermore, we discuss the inclusion results in some special classes, namely, spiral-like and convex spiral-like subclasses. In addition, we extend the findings by incorporating two Robin’s inequalities, one of which is analogous to the Riemann hypothesis.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:3657721

DOI: 10.1155/2024/3657721

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