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On necessary and sufficient conditions for the summability of a numerical series to imply its convergence

On the basis of the concepts of (C) -point and (¯R, p)-point of a sequence of complex numbers introduced by the author and results established earlier, we formulate necessary and sufficient conditions for the summability of a number series by a positive Cesaro method or the Riesz method to imply the...

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Bibliographic Details
Date:	1995
Main Authors:	Davydov, N. A., Давыдов, Н. А.
Format:	Article
Language:	Russian English
Published:	Institute of Mathematics, NAS of Ukraine 1995
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/5467
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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