Results 1 to 10 of about 331 (256)

TAUBERIAN THEOREM FOR GENERAL MATRIX SUMMABILITY METHOD [PDF]

open access: yesUral Mathematical Journal
In this paper, we prove certain Littlewood–Tauberian theorems for general matrix summability method by imposing the Tauberian conditions such as slow oscillation of usual as well as matrix generated sequence, and the De la Vallée Poussin means of real ...
Bidu Bhusan Jena   +2 more
doaj   +3 more sources

Matrix Summability Methods and Weakly Unconditionally Cauchy Series

open access: yesRocky Mountain Journal of Mathematics, 2009
We study new sequence spaces determined by series in normed spaces and a matrix summability method, giving new characterizations of weakly unconditionally Cauchy series. We obtain characterizations for the completeness of a normed space, and a version of the Orlicz-Pettis theorem via matrix summability methods is also proved.
Aizpuru, A.   +2 more
exaly   +7 more sources

Inclusion Theorems for Absolute Matrix Summability Methods

open access: yesJournal of Mathematical Analysis and Applications, 1999
The author establishes a general inclusion theorem for a non-negative regular matrix \(T\) satisfying some conditions absolutely stronger than conditions satisfied by a weighted mean matrix. Further he obtains four corollaries establishing inclusion theorems for Cesáro and weighted mean methods and deducing earlier results of H. Bor and M. A. Sarigöl.
B E Rhoades
exaly   +5 more sources

Matrix Transformations between Certain Sequence Spaces over the Non-Newtonian Complex Field [PDF]

open access: yesThe Scientific World Journal, 2014
In some cases, the most general linear operator between two sequence spaces is given by an infinite matrix. So the theory of matrix transformations has always been of great interest in the study of sequence spaces. In the present paper, we introduce the
Uğur Kadak, Hakan Efe
doaj   +3 more sources

Matrix Summability of Walsh–Fourier Series

open access: yesMathematics, 2022
The presented paper discusses the matrix summability of the Walsh–Fourier series. In particular, we discuss the convergence of matrix transforms in L1 space and in CW space in terms of modulus of continuity and matrix transform variation.
Ushangi Goginava, Károly Nagy
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

Absolute matrix summability methods

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hikmet Seyhan Özrssln, T. Ari
openaire   +5 more sources

Summability domains of matrix methods

open access: yesMonatshefte f�r Mathematik, 1969
David F Dawson, Dawson David F
openaire   +4 more sources

On absolute matrix summability methods [PDF]

open access: yesMathematical Communications, 2005
We have proved a theorem on summability methods. This theorem includes a known theorem.
Hikmet Seyhan Özrssln, H. N. Ögdük
openaire   +5 more sources

F-seminorms on generalized double sequence spaces defined by modulus functions; pp. 121–132 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2014
Using a double sequence of modulus functions and a solid double scalar sequence space, we determine F-seminorm and F-norm topologies for certain generalized linear spaces of double sequences.
Enno Kolk, Annemai Raidjõe
doaj   +1 more source

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