Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Geometric Properties of a Linear Operator Involving Lambert Series and Rabotnov Function

Version 1 : Received: 10 December 2023 / Approved: 11 December 2023 / Online: 11 December 2023 (12:16:12 CET)

How to cite: Salah, J. Geometric Properties of a Linear Operator Involving Lambert Series and Rabotnov Function. Preprints 2023, 2023120676. https://doi.org/10.20944/preprints202312.0676.v1 Salah, J. Geometric Properties of a Linear Operator Involving Lambert Series and Rabotnov Function. Preprints 2023, 2023120676. https://doi.org/10.20944/preprints202312.0676.v1

Abstract

In this study, we consider a Lambert series whose coefficients are the sum of divisors function. Utilizing the Lambert series in the sequel we introduce a normalized linear operator JR_(α,β) (z) by applying the convolution with Rabotnov function. We then, acquire sufficient conditions for JR_(α,β) (z) to be Univalent, Starlike and Convex respectively. In each component of this study, we expand the derived results by applying two Robin's inequalities, one of which is equivalent to the Riemann hypothesis.

Keywords

Univalent; Starlike; Convex; Hadamard product; Lambert series; Sum of divisors function; Robin’s inequalities; Riemann hypothesis; Rabotnov function

Subject

Computer Science and Mathematics, Mathematics

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