The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains

The present study’s intention is to produce exact estimations of some problems involving logarithmic coefficients for functions belonging to the considered subcollection BTsin of the bounded turning class. Furthermore, for the class BTsin, we look into the accurate bounds of the Zalcman inequality,...

Full description

Saved in:
Bibliographic Details
Main Authors: Pongsakorn Sunthrayuth, Naveed Iqbal, Muhammad Naeem, Yousef Jawarneh, Sallieu K. Samura
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Function Spaces
Online Access:http://dx.doi.org/10.1155/2022/2229960
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832554758981812224
author Pongsakorn Sunthrayuth
Naveed Iqbal
Muhammad Naeem
Yousef Jawarneh
Sallieu K. Samura
author_facet Pongsakorn Sunthrayuth
Naveed Iqbal
Muhammad Naeem
Yousef Jawarneh
Sallieu K. Samura
author_sort Pongsakorn Sunthrayuth
collection DOAJ
description The present study’s intention is to produce exact estimations of some problems involving logarithmic coefficients for functions belonging to the considered subcollection BTsin of the bounded turning class. Furthermore, for the class BTsin, we look into the accurate bounds of the Zalcman inequality, Fekete-Szegö inequality along with D2,1Gg/2 and D2,2Gg/2. Importantly, all of these bounds are shown to be sharp.
format Article
id doaj-art-745cea6de4594429ac6b081843e71cce
institution Kabale University
issn 2314-8888
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Journal of Function Spaces
spelling doaj-art-745cea6de4594429ac6b081843e71cce2025-02-03T05:50:37ZengWileyJournal of Function Spaces2314-88882022-01-01202210.1155/2022/2229960The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped DomainsPongsakorn Sunthrayuth0Naveed Iqbal1Muhammad Naeem2Yousef Jawarneh3Sallieu K. Samura4Department of Mathematics and Computer ScienceDepartment of MathematicsDeanship of Joint First Year Umm Al-Qura University MakkahDepartment of MathematicsDepartment of Mathematics and StatisticsThe present study’s intention is to produce exact estimations of some problems involving logarithmic coefficients for functions belonging to the considered subcollection BTsin of the bounded turning class. Furthermore, for the class BTsin, we look into the accurate bounds of the Zalcman inequality, Fekete-Szegö inequality along with D2,1Gg/2 and D2,2Gg/2. Importantly, all of these bounds are shown to be sharp.http://dx.doi.org/10.1155/2022/2229960
spellingShingle Pongsakorn Sunthrayuth
Naveed Iqbal
Muhammad Naeem
Yousef Jawarneh
Sallieu K. Samura
The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains
Journal of Function Spaces
title The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains
title_full The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains
title_fullStr The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains
title_full_unstemmed The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains
title_short The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains
title_sort sharp upper bounds of the hankel determinant on logarithmic coefficients for certain analytic functions connected with eight shaped domains
url http://dx.doi.org/10.1155/2022/2229960
work_keys_str_mv AT pongsakornsunthrayuth thesharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT naveediqbal thesharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT muhammadnaeem thesharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT yousefjawarneh thesharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT sallieuksamura thesharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT pongsakornsunthrayuth sharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT naveediqbal sharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT muhammadnaeem sharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT yousefjawarneh sharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains
AT sallieuksamura sharpupperboundsofthehankeldeterminantonlogarithmiccoefficientsforcertainanalyticfunctionsconnectedwitheightshapeddomains