Department of Mathematics, İstanbul Ticaret University, Üsküdar, 34378 İstanbul, Turkey
Academic Editor: J. Szabados
Copyright © 2010 E. Savaş. 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 establish a summability factor theorem for summability , where is lower triangular matrix with nonnegative entries satisfying certain conditions. This paper is an extension of the main result of the work by Rhoades and Savaş (2006)
by using quasi -increasing sequences.