Research Article

On equivalence of absolute double weighted mean methods

Published in: Quaestiones Mathematicae
Volume 44 , issue 6 , 2021 , pages: 755–764

DOI: 10.2989/16073606.2020.1746706

Author(s): Mehmet Ali Sarigöl , Turkey

Keywords: Primary: 40C05 , 40D25 , 40F05 , 46A45 , Primary: 40C05 , 40D25 , 40F05 , 46A45

Abstract

Bor [1], Bor and Thorpe [2] and the author [8] established the set of necessary and suﬃcient condition for the equivalence of absolute weighted mean summability methods of infinite series. In the present paper we extend their result to doubly infinite series by two dimensional weighted mean, which also includes the result of Rhoades [7].

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