Results 1 to 10 of about 274 (164)

Orlicz–Pettis Theorem through Summability Methods

open access: yesMathematics, 2019
This paper unifies several versions of the Orlicz−Pettis theorem that incorporate summability methods. We show that a series is unconditionally convergent if and only if the series is weakly subseries convergent with respect to a regular linear ...
Fernando León-Saavedra   +2 more
doaj   +3 more sources

On absolute matrix summability methods [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We have proved a theorem on summability methods. This theorem includes a known theorem.
H. S. Özarslan, H. N. Öğdük
doaj   +5 more sources

Applications of Lucas sequences in convergence and signal processing [PDF]

open access: yesScientific Reports
In this paper we propose a new perspective related to Lucas sequence with statistical and summability, some considerations have been given in connection with their applications of signal processing.
Majeed Ahmad Yousif   +4 more
doaj   +2 more sources

Absolute matrix summability methods

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hikmet Seyhan Özarslan
exaly   +4 more sources

On the Euler method of summability and concerning Tauberian theorems

open access: yesCumhuriyet Science Journal, 2021
For any two regular summability methods (U) and (V), the condition under which V-limx_n=λ implies U-limx_n=λ is called a Tauberian condition and the corresponding theorem is called a Tauberian theorem.
İbrahim Çanak, Sefa Anıl Sezer
doaj   +1 more source

ON \(A^{\mathcal{I^{K}}}\)–SUMMABILITY

open access: yesUral Mathematical Journal, 2022
In this paper, we introduce and investigate the concept of \(A^{\mathcal{I^{K}}}\)-summability as an extension of \(A^{\mathcal{I^{*}}}\)-summability which was recently (2021) introduced by O.H.H.~Edely, where \(A=(a_{nk})_{n,k=1}^{\infty}\) is a non ...
Chiranjib Choudhury, Shyamal Debnath
doaj   +1 more source

General methods of convergence and summability

open access: yesJournal of Inequalities and Applications, 2021
This paper is on general methods of convergence and summability. We first present the general method of convergence described by free filters of N $\mathbb{N} $ and study the space of convergence associated with the filter.
Francisco Javier García-Pacheco   +2 more
doaj   +1 more source

Strong summability methods in a Riesz-type family; pp. 238–250 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2011
We continue our studies on Riesz-type families of summability methods for functions and sequences, started in (Proc. Estonian Acad. Sci., 2008, 57, 70–80) and (Math. Model. Anal., 2010, 15, 103–112). Strong summability methods defined on the basis of
Anna Šeletski, Anne Tali
doaj   +1 more source

Tauberian theorems for weighted means of double sequences in intuitionistic fuzzy normed spaces [PDF]

open access: yesYugoslav Journal of Operations Research, 2022
We define weighted mean summability method of double sequences in intuitionistic fuzzy normed spaces(IFNS), and obtain necessary and sufficient Tauberian conditions under which convergence of double sequences in IFNS follows from their weighted mean ...
Narayan Mishra Lakshmi   +3 more
doaj   +1 more source

Ideals, Nonnegative Summability Matrices and Corresponding Convergence Notions: A Short Survey of Recent Advancements

open access: yesAxioms, 2021
In this survey article, we look into some recent results concerning summability matrices, both regular as well as those which are not regular (called semi-regular) and generated matrix ideals as the overall view of the inter relationship between the ...
Pratulananda Das
doaj   +1 more source

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