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  • Research Article
  • Open Access

A Note on Summability Factors for Infinite Series

Journal of Inequalities and Applications20072007:086095

  • Received: 9 November 2006
  • Accepted: 29 March 2007
  • Published:


We obtain sufficient conditions on a nonnegative lower triangular matrix and a sequence for the series to be absolutely summable of order by .


  • Triangular Matrix
  • Infinite Series
  • Lower Triangular Matrix
  • Summability Factor


Authors’ Affiliations

Department of Mathematics, Faculty of Sciences and Arts, Istanbul Ticaret University, Uskudar, Istanbul, 34672, Turkey
Department of Mathematics, Indiana University, Bloomington, IN 47405-7106, USA


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© E. Savaş and B. E. Rhoades 2007

This article is published under license to BioMed Central Ltd. 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.