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)
Department of Mathematics, “1 Decembrie 1918” University, Alba Iulia 510009, Romania
Received 30 October 2007; Accepted 30 December 2007
Academic Editor: Narendra Kumar K. Govil
Copyright © 2008 Daniel Breaz. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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).