Results 11 to 20 of about 366,987 (281)

Almost and Strongly Almost B(r ̃,s ̃,t ̃,u ̃)- Summable Double Sequences

Eurasian Journal of Science and Engineering, 2021
In this paper, we define some new almost and strongly almost convergent double sequence spaces B ̃(C_f), B ̃(C_f0), B ̃[C_f] and B ̃[C_f0] derived by the domain of four-dimensional sequential band matrix B(r ̃,s ̃,t ̃,u ̃) in the spaces C_f, C_f0 , [C_f]
Orhan Tuğ
doaj   +1 more source

On the relation between mixed Morrey spaces and mixed Morrey double-sequence spaces [PDF]

ITM Web of Conferences
In this article, we prove that mixed Morrey double-sequence spaces can be realized as a subspace of mixed Morrey spaces. Our proof extends a similar result for discrete Morrey spaces, obtained by Kikianty and Schwanke in 2019.
Gunawan Hendra, Kikianty Eder, Hakim Denny Ivanal, Ifronika, Yudatama Rizma   +4 more
doaj   +1 more source

Centralizers of the infinite symmetric group [PDF]

, 2013
We review and introduce several approaches to the study of centralizer algebras of the infinite symmetric group $S_\infty$. Our study is led by the double commutant relationships between finite symmetric groups and partition algebras; each approach ...
Daugherty, Zajj, Herbrich, Peter
core   +3 more sources

Approximation problems in modular spaces of double sequences [PDF]

, 1990
Let X denote the space of all real, bounded double sequences, and let Ф∞,Γ, be, ∞-functions . Moreover, let Ψ be an increasing, continuous function for u ≥ 0 such that Ψ (0) = 0. In this paper we consider some spaces of double sequences provided with two-
Waszak, Aleksander
core   +2 more sources

On some double Cesàro sequence spaces

Filomat, 2014
In this study, we define the double Ces?ro sequence spaces Cesp, Cesbp and Cesbp0 and examine some properties of those sequence spaces. Furthermore, we determine the ?(bp)-duals of the spaces Cesbp and Cesp.
Sever, Yurdal, Altay, Bilal
openaire   +4 more sources

Matrix transformations of double convergent sequences with powers [PDF]

Proceedings 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

On Ideal Convergent Difference Double Sequence Spaces in Intuitionistic Fuzzy Normed Linear Spaces

Universal Journal of Mathematics and Applications, 2021
In this paper, we introduce difference double sequence spaces ${I_{2} }^{(\mu,\upsilon)}(M,\Delta)$ and ${I_{2}^{0}}^{(\mu,\upsilon)}(M,\Delta)$ in the intuitionistic fuzzy normed linear spaces.
Esra Kamber, Selma Altundağ
doaj   +1 more source

Ordered Vector Valued Double Sequence Spaces

Fasciculi Mathematici, 2015
AbstractIn this paper we have introduced an order relation on convergent double sequences and have constructed an ordered vector space, Riesz space, order complete vector space in case of double sequences. We have verified the Archimedean property.
Dey, R., Das, N. R., Tripathy, B. C.
openaire   +2 more sources

Double sequences with ideal convergence in fuzzy metric spaces

AIMS Mathematics, 2023
We show ideal convergence ($ I $-convergence), ideal Cauchy ($ I $-Cauchy) sequences, $ I^* $-convergence and $ I^* $-Cauchy sequences for double sequences in fuzzy metric spaces. We define the $ I $-limit and $ I $-cluster points of a double sequence in
Aykut Or
doaj   +1 more source

Spreading maps (polymorphisms), symmetries of Poisson processes and matching summation [PDF]

, 2001
The matrix of a permutation is a partial case of Markov transition matrices. In the same way, a measure preserving bijection of a space A with finite measure is a partial case of Markov transition operators.
Neretin, Yurii A.
core   +4 more sources