Some Applications of Fractional Integral Operators and Ruscheweyh Derivatives

Recently, Owa, Saigo, and Srivastava introduced and studied a certain generalized fractional integral operator J0a, ,zb , h involving the Gaussian hypergeometric function. The object of this paper is to investigate various properties and relationships involving J0a, ,zb , h, the Carlson]Shaffer operator L a, c., and the Ruscheweyh derivative Dl. A number of interesting subclasses of analytic and univalent functions are also considered in our investigation. Q 1996 Academic Press, Inc.