Results 1 to 10 of about 203,314 (158)

On β-dual of vector-valued sequence spaces of Maddox

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
The β-dual of a vector-valued sequence space is defined and studied. We show that if an X-valued sequence space E is a BK-space having AK property, then the dual space of E and its β-dual are isometrically isomorphic.
Suthep Suantai, Winate Sanhan
doaj   +3 more sources

On paranormed Ideal convergent sequence spaces defined by Jordan totient function

open access: yesJournal of Inequalities and Applications, 2021
The study of sequence spaces and summability theory has been an important aspect in defining new notions of convergence for the sequences that do not converge in the usual sense.
Vakeel A. Khan, Umme Tuba
doaj   +3 more sources

An Extension of Maddox’s Paranormed Sequence Spaces with Narayana Numbers

open access: yesJournal of New Results in Science
This study focuses on constructing an extended version of Maddox’s paranormed sequence spaces, denoted by $c_0(N, p)$, $c(N, p)$, $\ell_\infty(N, p)$, and $\ell(N, p)$. The study aims to define and investigate the characteristics of these sequence spaces, along with their paranormed extensions.
Hacer Bilgin Ellidokuzoğlu   +1 more
openaire   +2 more sources

Matrix Transformations between the Sequence Spaces of Maddox

open access: yesJournal of Mathematical Analysis and Applications, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
K. Grosse-Erdmann
openaire   +3 more sources

The Structure of the Sequence Spaces of Maddox

open access: yesCanadian Journal of Mathematics, 1992
AbstractThe sequence of spaces of Maddox, c0(p), c(p)and l∞(p), are investigated. Here, p — (pk) is a bounded sequence of strictly positive numbers. It is observed that C0(P) is an echelon space of order 0 and that l∞(p) is a co-echelon space of order ∞, while clearly c(p) = c0(p) ⊗ 〈 (1,1,1,…) 〉.
null Karl-Goswin, null Grosse-Erdmann
openaire   +3 more sources

On some new matrix transformations [PDF]

open access: yes, 2013
Drawing of Object No ...
Rahmet Savaş, Ekrem Savaş
core   +2 more sources

Matrix transformations of double convergent sequences with powers [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
In 1967, I. J. Maddox generalized the spaces c0, c, ℓ∞ by adding the powers pk (k ∈ ℕ) in the definitions of the spaces to the terms of elements of sequences (xk). Gökhan and Çolak in 2004–2006 defined the corresponding double sequence spaces
Maria Zeltser, Şeyda Sezgek
doaj   +1 more source

Some new lacunary $f$-statistical $A$-convergent sequence spaces of order $\alpha$ [PDF]

open access: yes, 2015
We study the concept of density for sets of natural numbers in some lacunary $A$-convergent sequence spaces. Also we are trying to investigate some relation between the ordinary convergence and module statistical convergence for evey unbounded modulus ...
Borgohain, Stuti, Savas, Ekrem
core   +2 more sources

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