International Journal of Mathematics and Mathematical Sciences, 2007 Sufficient conditions are given to assure that a four-dimensional matrixAwill have the property that any double sequencexwith finite P-limit point has- aλ-rearrangementzsuch that each finite P-limit point ofxis a P-limit point ofAz.
openaire +3 more sources
Analogues of some fundamental theorems of summability theory
International Journal of Mathematics and Mathematical Sciences, 2000 In 1911, Steinhaus presented the following theorem: if A is a regular matrix then there exists a sequence of 0's and 1's which is not A-summable. In 1943, R. C.
Richard F. Patterson
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Diagonal Window Tests for Deferred Weighted Frequent Cauchy Sequences and Mean Coherence
Journal of MathematicsThis paper studies when a diagonal pairwise sampling condition of pre-Cauchy type can be upgraded to a genuine convergence criterion in the deferred weighted setting.
Ameni Gargouri +3 more
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Fundamental theorems of summability theory for double sequences via stretching by blocks
Journal of Inequalities and ApplicationsThis paper extends fundamental theorems of summability theory to double sequences using stretching by blocks technique. We prove Steinhaus- and Buck-type theorems for double sequences, characterizing sequences that resist summability by RH-regular ...
Sami M. Hamid, Richard F. Patterson
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Am J Speech Lang Pathol, 2022 Gandhi P, Steele CM.
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Pharmacopsychiatry, 2022 Lopez-Morinigo JD, Leucht S, Arango C.
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