Linear operators associated withk-uniformly convex functions

In terms of the Hadmard product (or convolution), define the operator by , where the function f is analytic in the unit disk. The classes of k-uniformly convex and k-starlike functions , denoted by , respectively, were introduced recently (cf.[3] and [5]). The object of the present paper is to find conditions on the papameters a,b,c, and k, for which the linear operator maps the classes of starlike and univalent functions onto .