Results 11 to 20 of about 11,921,625 (293)

Stečkin inequalities for summability methods

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
Stečkin proved an inequality on Fejér means of Fourier series He said, “Proving similar inequality for other summability method is an interesting problem.” We generalize Stečkin's inequality and give various applications to summability methods.
Jia-Ding Cao
doaj   +2 more sources

Ideal convergence generated by double summability methods

open access: yesDemonstratio Mathematica, 2016
The main result of this note is that if I is an ideal generated by a regular double summability matrix summability method T that is the product of two nonnegative regular matrix methods for single sequences, then I-statistical convergence and convergence
Connor Jeff
doaj   +2 more sources

Relations on some Summability Methods [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
In this paper we prove a new result connecting the summability methods | N
W. T. Sulaiman
openaire   +5 more sources

Summability methods based on the Riemann Zeta function [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
This paper is a study of summability methods that are based on the Riemann Zeta function. A limitation theorem is proved which gives a necessary condition for a sequence x to be zeta summable.
Larry K. Chu
doaj   +2 more sources

On Generalized Absolute Matrix Summability Methods [PDF]

open access: yesInternational Journal of Analysis and Applications, 2016
In this paper, we prove a general theorem dealing with absolute matrix summability methods of infinite series. This theorem also includes some new and known results.
Hikmet Seyhan Özarslan
doaj   +5 more sources

Some Equivalence Theorems on Absolute Summability Methods [PDF]

open access: yesInternational Journal of Analysis and Applications, 2017
In this paper, we obtained necessary and sufficient conditions for the equivalence of two general summability methods. Some new and known results are also obtained.
Hikmet Seyhan Özarslan
doaj   +4 more sources

A generalization theorem covering many absolute summability methods

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
A general theorem concerning many absolute summability methods is proved.
W. T. Sulaiman
doaj   +2 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

An Analogue for Strong Summability of Abel's Summability Method [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1953
Given a series Σan, we define , by the relationwhere is the binomial coefficient . Let . If , the series Σan is said to be summable (C; k) to the sum s. If k > 0, p ≥ 1 and if, as n → ∞,we say that the series Σan is summable [C; k, p] to the sum s, or that the series is strongly summable (C; k) with index p to the sum s. If denotes the difference ,
Harington, C. F., Hyslop, J. M.
openaire   +1 more source

Kernel-Summability Methods and the Silverman-Toeplitz Theorem [PDF]

open access: yes, 2023
We introduce kernel-summability methods in Banach spaces using the vector-valued integrals and prove an analogue of the Silverman-Toeplitz Theorem for regular kernel-summability methods.
Parisé, Pierre-Olivier
core   +1 more source

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