International Journal of Mathematics and Mathematical Sciences
Volume 2004 (2004), Issue 1-4, Pages 45-47
doi:10.1155/S0161171204305284
Partial sums of functions of bounded turning
Jay M. Jahangiri1
and K. Farahmand2
1Department of Mathematics, Kent State University, Burton 44021-9500, Ohio, USA
2School of Computing and Mathematics, University of Ulster, Jordanstown Campus, Newtownabbey Co. Antrim, BT37 0QB, UK
Abstract
We determine conditions under which the partial sums of the Libera integral operator of functions of bounded turning are also of bounded turning.