Fekete-Szegö inequalities for certain classes of biunivalent functions (Q1727822)
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scientific article; zbMATH DE number 7027194
| Language | Label | Description | Also known as |
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| English | Fekete-Szegö inequalities for certain classes of biunivalent functions |
scientific article; zbMATH DE number 7027194 |
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Fekete-Szegö inequalities for certain classes of biunivalent functions (English)
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21 February 2019
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Summary: We obtain the Fekete-Szegö inequalities for the classes \(S_{S, \Sigma}^*(\alpha, \phi)\) and \(\pounds_{S, \Sigma}(\alpha, \phi)\) of biunivalent functions denoted by subordination. The results presented in this paper improve the recent work of \textit{O. Crişan} [``Coefficient estimates for certain subclasses of bi-univalent functions'', Gen. Math. Notes 16, No. 2, 93--102 (2013)].
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