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Two theorems in the theory of summation of numerical series by lower triangular positive monotone matrices

For so-called monotone matrices, we establish necessary and sufficient conditions for the summation with them of some divergent sequences of 0 and 1 up to zero or some unbounded sequences of nonnegative numbers.

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Bibliographic Details
Date:	1999
Main Authors:	Davydov, N. A., Давыдов, Н. А.
Format:	Article
Language:	Russian English
Published:	Institute of Mathematics, NAS of Ukraine 1999
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/4639
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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