New Insights into the fourth-order Hankel determinant within a certain class of analytical functions

Authors

  • Abdullah Alsoboh College of Applied and Health Sciences, A
  • Waggas Galib Atshan Department of Mathematics, College of Science, University of Al-Qadisiyah, Diwaniyah 58001, Iraq
  • Muhammed Salih Muhammed Department of Mathematics, College of Science, University of Al-Qadisiyah, Diwaniyah 58001, Iraq

DOI:

https://doi.org/10.19139/soic-2310-5070-3745

Keywords:

Analytical functions, fourth Hankel determinant, Chebyshev polynomials, Coefficient bounds, Subordination

Abstract

This paper investigates the subclass $M(\beta, \gamma, \e)$ of analytic functions defined on the open unit disk by employing the principle of subordination as a key analytical tool. Sharp upper bounds are obtained for the coefficients $\left|\y_{\n}\right|$ of functions in this class for $\n=2,3,4,5,6,7$, providing insight into the structure of the coefficients in the subclass. Furthermore, a general expression for the fourth Hankel determinant is derived for functions belonging to $M(\beta, \gamma, \e)$, representing a novel contribution to the field. Several additional results are also established, enriching the theory of analytic functions.

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Published

2026-07-01

How to Cite

Alsoboh, A., Atshan, W. ., & Muhammed, M. S. (2026). New Insights into the fourth-order Hankel determinant within a certain class of analytical functions. Statistics, Optimization & Information Computing. https://doi.org/10.19139/soic-2310-5070-3745

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Section

Research Articles

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