Note on the zeros of functions with univalent derivatives

Mohammad Salmassi

International Journal of Mathematics and Mathematical Sciences, 1986, vol. 9, 1-8

Abstract:

Let E denote the class of functions f ( z ) analytic in the unit disc D , normalized so that f ( 0 ) = 0 = f ′ ( 0 ) − 1 , such that each f ( k ) ( z ) , k ≥ 0 is univalent in D . In this paper we establish conditions for some functions to belong to class E .

Date: 1986
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:986457

DOI: 10.1155/S0161171286000108

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