Certain subclasses of k-uniformly starlike functions associated with symmetric q-derivative operator.

In this paper, we have established the inclusion relations for k-uniformly starlike functions under the (Dqf)(z) operator. We define two new sub-class of k-uniformly starlike functions of order α. Moreover, for functions belonging to these function classes, we investigate necessary and suffcient coeffcient conditions, distortion bounds, extreme points. [ABSTRACT FROM AUTHOR]