PRESERVING PROPERTIES OF THE GENERALIZED BERNARDI-LIBERA-LIVINGSTON INTEGRAL OPERATOR DEFINED ON SOME SUBCLASSES OF STARLIKE FUNCTIONS

Authors : OLGA ENGEL, ORSOLYA AGNES PALLSZABO

Pages : 207-215

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Publication Date : 2017-10-15

Article Type : Research Paper

Abstract :In this paper we study the properties of the image of some subclasses of starlike functions, through the generalized Bernardi - Libera - Livingston integral operator. A new subclass of functions with negative coefficients is introduced and we study some properties of this class.
Keywords : Bernardi Libera Livingston integral operator, composition of functions, functions with negative coefficients, starlikeness