On the Fekete-Szegö problem

B. A. Frasin and Maslina Darus

International Journal of Mathematics and Mathematical Sciences, 2000, vol. 24, 1-5

Abstract:

Let f ( z ) = z + a 2 z 2 + a 3 z 3 + ⋯ be an analytic function in the open unit disk. A sharp upper bound is obtained for | a 3 − μ a 2 2 | by using the classes of strongly starlike functions of order β and type α when μ ≥ 1 .

Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:263857

DOI: 10.1155/S0161171200005111

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