International Journal of Mathematics and Mathematical Sciences
Volume 24 (2000), Issue 8, Pages 533-538
doi:10.1155/S0161171200003732

Matrix transformations from absolutely convergent series to convergent sequences as general weighted mean summability methods

Jinlu Li

Department of Mathematics, Shawnee State University, Portsmouth 45662, Ohio, USA

Abstract

We prove the necessary and sufficient conditions for an infinity matrix to be a mapping, from absolutely convergent series to convergent sequences, which is treated as general weighted mean summability methods. The results include a classical result by Hardy and another by Moricz and Rhoades as particular cases.