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On equivalence of absolute double weighted mean methods


Mehmet Ali Sarigol

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 innite series. In the present paper we extend their result to doubly innite series by two dimensional weighted mean, which also includes the result of Rhoades [7].


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eISSN: 1727-933X
print ISSN: 1607-3606