Copyright © 2009 E. Savaş and H. Şevli. 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 prove two theorems on , , summability factors for an infinite series by using quasi-power increasing sequences. We obtain sufficient conditions for to be summable ,
, by using quasi-f-increasing