Coefficient functionals for Sakaguchi-type-Starlike functions subordinated to the three-leaf function

A challenging part of studying geometric function theory is figuring out the sharp boundaries for coefficient-related problems that crop up in the Taylor-Maclaurin series of univalent functions. The objective of this article is to define the families of Sakaguchi-type starlike functions with respect...

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Bibliographic Details
Main Authors: Murugusundaramoorthy Gangadharan, Lupas Alina Alb, Alburaikan Alhanouf, El-Deeb Sheza M.
Format: Article
Language:English
Published: De Gruyter 2025-06-01
Series:Demonstratio Mathematica
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Online Access:https://doi.org/10.1515/dema-2025-0123
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Summary:A challenging part of studying geometric function theory is figuring out the sharp boundaries for coefficient-related problems that crop up in the Taylor-Maclaurin series of univalent functions. The objective of this article is to define the families of Sakaguchi-type starlike functions with respect to symmetric points based on qq-operator and to investigate the precise boundaries for a range of issues, including the first three initial coefficient estimates, Fekete-Szegö type and the Zalcman inequalities by subordinating to the function of the three leaves. Additionally, we discussed initial coefficients and Fekete-Szegö type inequalities for functions of the form ℱ−1{{\mathcal{ {\mathcal F} }}}^{-1} and zℱ(z)\frac{z}{{\mathcal{ {\mathcal F} }}\left(z)} and 12logℱ(z)z\frac{1}{2}\log \left(\phantom{\rule[-0.75em]{}{0ex}},\frac{{\mathcal{ {\mathcal F} }}(z)}{z}\right) linked with the function of the three leaves.
ISSN:2391-4661