INITIAL COEFFICIENT BOUNDS FOR A CLASS FUNCTIONS INVOLVING Q-SAL˘ AGEAN˘ DIFFERENTIAL OPERATOR

Abstract

By making use of the q-analogue of famous S ̆al ̆agean differential operator, the authors define a new subclass of analytic functions with respect to other points. Fekete-Szeg ̈o inequality and initial coefficient bounds of a certain bi-starlike functions areobtained. Further several examples, remarks and applications of our results are enumerated.