New subclass of harmonic univalent functions defined by a generalised differential operator (Subkelas baharu fungsi univalen harmonik yang ditakrif oleh pengoperasi pembeza teritlak)

Let SH denote the class of functions =fhg+ which are harmonic univalent and sense preserving in the unit disk U. Earlier we have introduced a class of harmonic functions defined by a generalised differential operator. In this paper we introduce a new subclass of this class and obtain results on coef...

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Bibliographic Details
Main Authors: Salma Faraj Ramadan, Maslina Darus
Format: Article
Published: Penerbit Universiti Kebangsaan Malaysia 2012
Online Access:http://journalarticle.ukm.my/5463/
http://www.ukm.my/jqma/index2.html
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Institution: Universiti Kebangsaan Malaysia
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Summary:Let SH denote the class of functions =fhg+ which are harmonic univalent and sense preserving in the unit disk U. Earlier we have introduced a class of harmonic functions defined by a generalised differential operator. In this paper we introduce a new subclass of this class and obtain results on coefficient bounds, distortion and extreme points.