Journal of Inequalities and Applications
Volume 2008 (2008), Article ID 280183, 5 pages
doi:10.1155/2008/280183
Research Article

The Radius of Starlikeness of the Certain Classes of p-Valent Functions Defined by Multiplier Transformations

Mugur Acu,1 Yaşar Polatog̃lu,2 and Emel Yavuz2

1Department of Mathematics, "Lucian Blaga" University of Sibiu, 5-7 Ion Ratiu Street, Sibiu 550012, Romania
2Department of Mathematics and Computer Science, TC İstanbul Kültür University, İstanbul 34156, Turkey

Received 12 November 2007; Accepted 2 January 2008

Academic Editor: Narendra Kumar K. Govil

Copyright © 2008 Mugur Acu et al. 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

The aim of this paper is to give the radius of starlikeness of the certain classes of p-valent functions defined by multiplier transformations. The results are obtained by using techniques of Robertson (1953,1963) which was used by Bernardi (1970), Libera (1971), Livingstone (1966), and Goel (1972).