Affiliation:
1. Jadavpur University Department of Mathematics Kolkata-700032 , West Bengal India
2. Istanbul Commerce University Department of Mathematics Sütlüce-Istanbul Turkey
Abstract
Abstract
We introduce a convergence of weight g: ℕ → [0, ∞) where g(n) → ∞ and n/g(n) ↛ 0 with respect to a summability matrix method A for sequences (which generalizes the notion of A-convergence of order α, 0 < α ≤ 1 [BOCCUTO, A.—DAS, P.: On matrix methods of convergence of order (α) in (ℓ)-groups, Filomat 29 (2015), 2069–2077] in a (ℓ)-group. We prove some basic results including a Cauchy-type criterion. Finally a closedness result for the space of such convergent sequences is proved.
Cited by
2 articles.
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1. Properties of simple density ideals;Journal of Mathematical Analysis and Applications;2019-09
2. Erdős–Ulam ideals vs. simple density ideals;Journal of Mathematical Analysis and Applications;2018-06