The object of this paper is to generalize some of the well-known results and obtain interesting new results using the technique of differential subordination.

In this paper we obtain some subordination and superordination results for p-valent functions by using a certain operator. 2000 Mathematics Subject Classification:30C45.

A number of interesting criteria were given by earlier workers for a normalized analytic function to be in the familiar class ∗ of starlike functions. The main object of the present paper is to extend and improve each of these earlier results. An application associated with an integral operator c(c >−1) is also considered.