On the ?(A)-summability and ?(A)-core

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Tarih

2007

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Walter de Gruyter GmbH

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

In [6] and [9], the concepts of ?-core and statistical core of a bounded number sequence x have been introduced and also some inequalities which are analogues of Knopp's core theorem have been proved. In this paper, using the concept of ?(A)-summability introduced by Savaş, we characterize the matrices of the classes (m, V?(A)), (c, V?(A))), (V?, VCT?(A)) and (S?m, V?(A))reg and determine necessary and sufficient conditions for a matrix B to satisfy ?(A) -core(Bx) ? K-core(x), ?(A) -core(Bx) ? ? - core(x) and ?(A) - core(Bx) ? st - core(x), for all x ? m. Copyright © 2018 by Walter de Gruyter GmbH.

Açıklama

Anahtar Kelimeler

Matrix transformations and core theorems, Statistically convergence, ?(A) -convergence

Kaynak

Demonstratio Mathematica

WoS Q Değeri

Scopus Q Değeri

Q2

Cilt

40

Sayı

4

Künye