International Journal of Mathematics and Mathematical Sciences
Volume 2005 (2005), Issue 1, Pages 125-131
Integral properties of certain classes of analytic functions with
Faculty of Mathematics and Computer Science, Babes-Bolyai University, 1 M. Kogalniceanu Street, Cluj-Napoca, 3400, Italy
Received 20 February 2004; Revised 11 November 2004
Copyright © 2005 G. S. SăLăgean. 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.
We study integral properties of two classes of functions with
negative coefficients defined using differential operators. The
obtained results are sharp and they improve known results.