Rate preservation of double sequences under l - l type transformation

Richard F. Patterson

International Journal of Mathematics and Mathematical Sciences, 2002, vol. 30, 1-7

Abstract:

Following the concepts of divergent rate preservation for ordinary sequences, we present a notion of rates preservation of divergent double sequences under l - l type transformations. Definitions for Pringsheim limit inferior and superior are also presented. These definitions and the notion of asymptotically equivalent double sequences, are used to present necessary and sufficient conditions on the entries of a four-dimensional matrix such that, the rate of divergence is preserved for a given double sequences under l - l type mapping where l = : { x k , l : ∑ k , l = 1 , 1 ∞ , ∞ | x k , l | < ∞ } .

Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:623253

DOI: 10.1155/S0161171202005331

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