International Journal of Mathematics and Mathematical Sciences
Volume 2006 (2006), Article ID 39840, 12 pages
Subclasses of -spirallike functions associated with Ruscheweyh derivatives
1Department of Mathematics, Changshu Institute of Technology, Changshu, Jiangsu 215500, China
2Department of Mathematics, Suzhou University, Suzhou, Jiangsu 215006, China
Received 9 May 2005; Revised 25 September 2005; Accepted 20 October 2005
Copyright © 2006 Neng Xu and Dinggong Yang. 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.
Making use of the Ruscheweyh derivatives, we introduce the
subclasses of functions which are analytic in . Subordination and inclusion relations are
obtained. The radius of -spirallikeness of order is calculated. A convolution property and a special member of are also given.