Results 1 to 10 of about 6,225 (300)
Orlicz–Pettis Theorem Through Summability Methods [PDF]
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]
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
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
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
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]
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]
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]
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]
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, 89â101) and W. Lenski and B.
Włodzimierz Łenski, Bogdan Szal
doaj +1 more source
On the Euler method of summability and concerning Tauberian theorems
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

