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

Year 2017, Volume: 5 Issue: 2, 207 - 215, 15.10.2017

OLGA Engel ORSOLYA Agnes Pall-szabo

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

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