Journal of Inequalities and Applications 
Volume 2008 (2008), Article ID 143869, 4 pages
doi:10.1155/2008/143869
Research Article

A Convexity Property for an Integral Operator on the Class SP(β)

Daniel Breaz

 Department of Mathematics, “1 Decembrie 1918” University, Alba Iulia 510009, Romania
Received 30 October 2007; Accepted 30 December 2007

Recommended by Narendra Kumar K. Govil

Abstract

We consider an integral operator, Fn(z), for analytic functions, fi(z), in the open unit disk, U. The object of this paper is to prove the convexity properties for the integral operator Fn(z), on the class Sp(β).