Four dimensional matrix characterization P-convergence fields of summability methods

Document Type

Article

Publication Date

2-21-2013

Abstract

In 1945 Agnew presented two dimensional matrix characterization of convergent fields. The goal of this paper is to present four dimensional matrix characterization of P-convergent field. This will be accomplished by the presentation of the following multiple dimensional analogues of Agnew's theorem. If A is a four-dimensional multiplicative with multiplier 0, then there are sequences 0= σ0<σ1<σ2<⋯ and 0=ρ0<ρ1< ρ2<⋯ of integers such that each bounded double sequence {xk,l} oscillating so slowly that P-lim m,nmaxσm≤k,r≤σm+1ρn ≤l,s≤ρn+1x k,l-xr, s=0is A summable to 0 in the Pringsheim sense. In addition, natural implications and variations are also presented.© 2013 Elsevier Inc. All rights reserved.

Publication Title

Applied Mathematics and Computation

Volume

219

Issue

12

First Page

6783

Last Page

6791

Digital Object Identifier (DOI)

10.1016/j.amc.2012.12.069

ISSN

00963003

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