Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function

Hermitian Toeplitz determinants are utilized across various fields, such as functional analysis, applied mathematics, physics, and technical sciences. This paper establishes a link with specific subclasses of analytic functions. Extensive research exists regarding estimating second and third Hankel...

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Main Authors: Sangarambadi Padmanabhan Vijayalakshmi, Sibel Yalçın, Tirumalai Sudharsan
Format: Article
Language:English
Published: University of Maragheh 2025-01-01
Series:Sahand Communications in Mathematical Analysis
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Online Access:https://scma.maragheh.ac.ir/article_719347_8c7f7fd720462c5f45a1d08d5d93abdf.pdf
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author Sangarambadi Padmanabhan Vijayalakshmi
Sibel Yalçın
Tirumalai Sudharsan
author_facet Sangarambadi Padmanabhan Vijayalakshmi
Sibel Yalçın
Tirumalai Sudharsan
author_sort Sangarambadi Padmanabhan Vijayalakshmi
collection DOAJ
description Hermitian Toeplitz determinants are utilized across various fields, such as functional analysis, applied mathematics, physics, and technical sciences. This paper establishes a link with specific subclasses of analytic functions. Extensive research exists regarding estimating second and third Hankel determinants for normalized analytic functions within this domain. The current research seeks to establish precise upper and lower bounds for the second and third-order Hermitian Toeplitz determinants associated with specific  novel subclasses of Sakaguchi-type functions,  $S_s^*(\sin z), S_c^*(\sin z)$ and $S_p^q(\sin z)$  related to the sine function. Further, the sharp estimates of  Zalcman functional   $|a_{n+m-1}-a_na_m| $ for $n=2$ and $n=2$, $m=3$  are considered.
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institution Kabale University
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language English
publishDate 2025-01-01
publisher University of Maragheh
record_format Article
series Sahand Communications in Mathematical Analysis
spelling doaj-art-8259febc14b340a183c6762f645bcdb72025-02-11T05:28:01ZengUniversity of MaraghehSahand Communications in Mathematical Analysis2322-58072423-39002025-01-0122117519110.22130/scma.2024.2030027.1737719347Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine FunctionSangarambadi Padmanabhan Vijayalakshmi0Sibel Yalçın1Tirumalai Sudharsan2Department of Mathematics, Dwaraka Doss Goverdhan Doss Vaishnav College, Chennai, India.Department of Mathematics, Faculty of Arts and Sciences, Bursa Uludag University, Bursa, TÜRKİYE.Department of Mathematics, S.I.V.E.T College, Gowrivakkam, Chennai, India.Hermitian Toeplitz determinants are utilized across various fields, such as functional analysis, applied mathematics, physics, and technical sciences. This paper establishes a link with specific subclasses of analytic functions. Extensive research exists regarding estimating second and third Hankel determinants for normalized analytic functions within this domain. The current research seeks to establish precise upper and lower bounds for the second and third-order Hermitian Toeplitz determinants associated with specific  novel subclasses of Sakaguchi-type functions,  $S_s^*(\sin z), S_c^*(\sin z)$ and $S_p^q(\sin z)$  related to the sine function. Further, the sharp estimates of  Zalcman functional   $|a_{n+m-1}-a_na_m| $ for $n=2$ and $n=2$, $m=3$  are considered.https://scma.maragheh.ac.ir/article_719347_8c7f7fd720462c5f45a1d08d5d93abdf.pdfsakaguchi functionshermitian toeplitzsine functionstarlike functions
spellingShingle Sangarambadi Padmanabhan Vijayalakshmi
Sibel Yalçın
Tirumalai Sudharsan
Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function
Sahand Communications in Mathematical Analysis
sakaguchi functions
hermitian toeplitz
sine function
starlike functions
title Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function
title_full Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function
title_fullStr Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function
title_full_unstemmed Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function
title_short Sharp Estimates of Hermitian Toeplitz Determinants for Some Subclasses of Sakaguchi Type Function Related to Sine Function
title_sort sharp estimates of hermitian toeplitz determinants for some subclasses of sakaguchi type function related to sine function
topic sakaguchi functions
hermitian toeplitz
sine function
starlike functions
url https://scma.maragheh.ac.ir/article_719347_8c7f7fd720462c5f45a1d08d5d93abdf.pdf
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AT sibelyalcın sharpestimatesofhermitiantoeplitzdeterminantsforsomesubclassesofsakaguchitypefunctionrelatedtosinefunction
AT tirumalaisudharsan sharpestimatesofhermitiantoeplitzdeterminantsforsomesubclassesofsakaguchitypefunctionrelatedtosinefunction