On the spaces of Nörlund almost null and Nörlund almost convergent sequences
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In this article, the sequence spaces f0(Nt) and f (Nt) are introduced as the domain of N?rlund mean in the spaces f0 and f of almost null and almost convergent sequences which are isomorphic to the spaces f0 and f , respectively, and some inclusion relations are given. Additionally, alpha, beta and gamma duals of the sequence spaces f0(Nt) and f (Nt) are determined. Finally, the classes (?(Nt):?) and (?:?(Nt)) of matrix transformations are characterized for given sequence spaces ? and ? together with two Steinhaus type results.
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2018 ◽
Vol 36
(1)
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pp. 37
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Keyword(s):