Aini Janteng and Suzeini Abdul Halim and Maslina Darus (2005) Coefficient inequality for certain subclasses of univalent functions. Far East Journal of Mathematical Sciences (FJMS), 19. pp. 1-10. ISSN 0972-0871
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Abstract
Let f (z)= z+ ∑_(n=2)^∞▒〖a_n z^n 〗 an analytic and univalent function in the unit disk D = {z├∶┤|├ z┤| z < ├ 1}. The purpose of the present paper is to introduce the functional |a_4-μa^(2/3) | when µ is real. We give sharp upper bounds for |a_4-μa^(2/3) | for certain subclasses of univalent functions. The results obtained are sharp.
Item Type: | Article |
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Keyword: | Fekete-Szegö functional , Hankel determinant , Real positive and starlike functions |
Subjects: | Q Science > QA Mathematics > QA1-939 Mathematics |
Department: | FACULTY > Faculty of Science and Natural Resources |
Depositing User: | DG MASNIAH AHMAD - |
Date Deposited: | 01 Aug 2022 14:19 |
Last Modified: | 01 Aug 2022 14:19 |
URI: | https://eprints.ums.edu.my/id/eprint/33568 |
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