COEFFICIENT INEQUALITIES FOR SUBCLASSES OF ANALYTIC FUNCTIONS BASED ON QUASI-SUBORDINATION AND MAJORIZATION RELATED WITH SIGMOID FUNCTIONS

Vanitha, Lakshminarayanan; Ramachandran, Chellakutti; Murugusundaramoorthy, Gangadharan; ORHAN, Halit

doi:10.24193/mathcluj.2022.1.15

COEFFICIENT INEQUALITIES FOR SUBCLASSES OF ANALYTIC FUNCTIONS BASED ON QUASI-SUBORDINATION AND MAJORIZATION RELATED WITH SIGMOID FUNCTIONS

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Vanitha L., Ramachandran C., Murugusundaramoorthy G., ORHAN H.

Mathematica, vol.64, no.1, pp.130-148, 2022 (Scopus)

Publication Type: Article / Article
Volume: 64 Issue: 1
Publication Date: 2022
Doi Number: 10.24193/mathcluj.2022.1.15
Journal Name: Mathematica
Journal Indexes: Scopus, zbMATH
Page Numbers: pp.130-148
Keywords: majorization, quasi-subordination, subordination, Univalent function
Ataturk University Affiliated: Yes

Abstract

© 2022, Publishing House of the Romanian Academy. All rights reserved.In the present paper, we estimate the coefficient bounds for certain subclasses of the starlike and convex functions using quasi-subordination and majorization relating with sigmoid functions.