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Tauberian conditions for Conull spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
The typical Tauberian theorem asserts that a particular summability method cannot map any divergent member of a given set of sequences into a convergent sequence. These sets of sequences are typically defined by an “order growth” or “gap” condition.
J. Connor, A. K. Snyder
doaj   +3 more sources

Some Tauberian conditions on logarithmic density [PDF]

open access: yesAdvances in Difference Equations, 2019
This article is based on the study on the λ-statistical convergence with respect to the logarithmic density and de la Vallee Poussin mean and generalizes some results of logarithmic λ-statistical convergence and logarithmic (V,λ) $(V,\lambda ...
Adem Kılıçman   +2 more
doaj   +3 more sources

Tauberian conditions for a general limitable method [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Let (un) be a sequence of real numbers, L an additive limitable method with some property, and and different spaces of sequences related to each other.
İbrahim Canak, Ümit Totur
doaj   +2 more sources

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

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

NECESSARY AND SUFFICIENT TAUBERIANCONDITIONS UNDER WHICH CONVERGENCEFOLLOWS FROM SUMMABILITY Ar,p

open access: yesПроблемы анализа, 2021
In this paper, we introduce the summability method Ar,p and obtain necessary and sufficient Tauberian conditions under which the ordinary convergence of a sequence follows from itssummability Ar,p.
C. Kambak, I. Canak
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

TAUBERIAN CONDITIONS FOR $q$-CES\`{A}RO INTEGRABILITY [PDF]

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2020
Given a $q$-integrable function $f$ on $[0, \infty)$, we define $s(x)=\int_{0}^{x}f(t)d_qt$ and $\sigma(s(x))=\frac{1}{x}\int _{0}^{x} s(t)d_{q}t$ for $x>0$. It is known that if $\lim _{x \to \infty}s(x)$ exists andis equal to $A$, then $\lim _{x \to \infty}\sigma(s(x))=A$. But the converse of this implication is not true in general.
Sefa Anıl Sezer, İbrahim Çanak
openaire   +2 more sources

Tauberian theorems for statistical logarithmic summability of strongly measurable fuzzy valued functions

open access: yesCommunications in Advanced Mathematical Sciences, 2020
We define statistical logarithmic summability of strongly measurable fuzzy valued functions and we give slowly decreasing type Tauberian conditions under which statistical limit at infinity and statistical logarithmic summability of strongly measurable ...
Enes Yavuz   +2 more
doaj   +1 more source

ON A TAUBERIAN CONDITION FOR BOUNDED LINEAR OPERATORS [PDF]

open access: yesMathematical Proceedings of the Royal Irish Academy, 2009
Let \(T\) be a bounded linear operator on a complex Banach space \(X\). The operator \(T\) is called power bounded if there is a constant \(C\) such that \(\| T^{n} \| \leq C\) for all \(n = 1,2,\dots\). The main results of the paper are the following. Assume that the operator \(T\) satisfies the Tauberian condition \[ \sup_{n \geq 1} (n + 1) \| (I - T)
Malinen, J., Nevanlinna, O., Yuan, Z.
openaire   +1 more source

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