Coefficient inequalities for Janowski-Sakaguchi type functions associated with conic regions

Authors : Muhammad ARİF, Zhigang WANG, Rafiullah KHAN, See Keong LEE

Pages : 261-271

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Publication Date : 2018-04-01

Article Type : Research Paper

Abstract :The purpose of the present paper is to introduce and study some new subclasses of Sakaguchi-type functions defined by using the concept of Janowski functions in conic regions. Various interesting properties such as sufficiency criteria, coefficient estimates and distortion result are investigated for these function classes.
Keywords : Sakaguchi type function, Janowski function, conic domain