Two types of the second Hankel determinant for the class U and the general class S

Authors

DOI:

https://doi.org/10.12697/ACUTM.2023.27.05

Keywords:

Second order Hankel determinant, class U, classes of univalent functions

Abstract

In this paper we determine the upper bounds of the Hankel determinants of special type H2(3)(f) and H2(4)(f) for the general class of univalent functions and for the class U.

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Author Biographies

Milutin Obradović, University of Belgrade

Department of Mathematics, Faculty of Civil Engineering

Nikola Tuneski, Ss. Cyril and Methodius University in Skopje

Department of Mathematics and Informatics, Faculty of Mechanical Engineering

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Published

2023-05-28

Issue

Vol. 27 No. 1 (2023)

Section

Articles