Results 1 to 10 of about 6,225 (300)

Orlicz–Pettis Theorem Through Summability Methods [PDF]

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   +1 more
exaly   +4 more sources

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

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   +2 more sources

On Statistical A-Summability

open access: yesMathematical and Computer Modelling, 2009
If \(x=(x_k)\) is a number sequence and \(A=(a_{nk})_{n,k=1}^{\infty}\) is an infinite matrix, then \(Ax\) is the sequence whose \(n\)th term is given by \(A_n(x) = \sum_{k=1}^{\infty}a_{n,k}x_k\). Thus we say that \(x\) is \(A\)-summable to \(L\) if \(\lim_n A_n(x)=L\).
Mohammad Mursaleen
exaly   +2 more sources

Summability in Topological Spaces

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hüseyin Çakallı
exaly   +6 more sources

A Summability Factor Theorem for a Generalized Absolute Cesàro Summability

open access: yesMathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dansheng Yu
exaly   +3 more sources

Some remarks on Cesaro summability in neutrosophic normed spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
In this paper, we define the notion of a generalized summability, called Ces`aro summability in neutrosophic normed spaces (briefly NNS). We obtain conditions under which ordinary summability follows from Cesaro summability. Later, we define a concept of
Vijay Kumar   +2 more
doaj   +1 more source

Some Results on Cesàro summability in Intuitionistic Fuzzy $n$-normed linear Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2022
The concept of summability plays a central role in finding formal solutions of partial differential equations. In this paper, we introduce the concept of Cesàro summability in an intuitionistic fuzzy $n$-normed linear space (IFnNLS).
Pradip Debnath
doaj   +1 more source

Analytic continuation of solutions of some nonlinear convolution partial differential equations [PDF]

open access: yesOpuscula Mathematica, 2015
The paper considers a problem of analytic continuation of solutions of some nonlinear convolution partial differential equations which naturally appear in the summability theory of formal solutions of nonlinear partial differential equations.
Hidetoshi Tahara
doaj   +1 more source

Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series; pp 50-60 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2018
We extend the results presented by Xh. Z. Krasniqi (Slight extensions of some theorems on the rate of pointwise approximation of functions from some subclasses of Lp. Acta Comment. Univ. Tartu. Math., 2013, 17, 89–101) and W. Lenski and B.
Włodzimierz Łenski, Bogdan Szal
doaj   +1 more source

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

Home - About - Disclaimer - Privacy