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Main Authors: Tuǧ, Orhan, Malkowsky, Eberhard, Rakočević, Vladimir, Yaying, Taja
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2406.05117
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author Tuǧ, Orhan
Malkowsky, Eberhard
Rakočević, Vladimir
Yaying, Taja
author_facet Tuǧ, Orhan
Malkowsky, Eberhard
Rakočević, Vladimir
Yaying, Taja
contents Double sequence spaces have become a significant area of research within functional analysis due to their applications in various branches of mathematics and mathematical physics. In this study, we investigate Hahn double sequence space denoted as $\mathcal{H}_{\vartheta}$, where $\vartheta\in\{p,bp,r\}$, as an extension of the Hahn sequence space $h$. Our investigation begins with an analysis of several topological properties of $\mathcal{H}_{\vartheta}$, apart from a comprehensive analysis of the relationship between Hahn double sequences and some other classical double sequence spaces. The $α-$dual, algebraic dual and $β(bp)-$dual, and $γ-$dual of the space $\mathcal{H}_{\vartheta}$ are detrmined. Furthermore, we define the determining set of $\mathcal{H}_{\vartheta}$ and we state the conditions concerning the characterization of four-dimensional (4D) matrix classes $(\mathcal{H}_{\vartheta},λ)$, where $λ=\{\mathcal{H}_{\vartheta},\mathcal{BV}, \mathcal{BV}_{\vartheta 0}, \mathcal{CS}_{\vartheta},\mathcal{CS}_{\vartheta 0},\mathcal{BS}\}$ and $(μ,\mathcal{H}_{\vartheta})$, where $μ=\{\mathcal{L}_u, \mathcal{C}_{\vartheta 0}, \mathcal{C}_{\vartheta},\mathcal{M}_{u}\}$. In conclusion, this research contributes non-standard investigation and various significant results into the space $\mathcal{H}_{\vartheta}$. The conducted results are deepen the understanding of the space $\mathcal{H}_{\vartheta}$ and open up new avenues for further research and applications in sequence space theory.
format Preprint
id arxiv_https___arxiv_org_abs_2406_05117
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the Double Sequence Space $\mathcal{H}_{\vartheta}$ as an Extension of Hahn Space $h$
Tuǧ, Orhan
Malkowsky, Eberhard
Rakočević, Vladimir
Yaying, Taja
Functional Analysis
46A45, 40C05
Double sequence spaces have become a significant area of research within functional analysis due to their applications in various branches of mathematics and mathematical physics. In this study, we investigate Hahn double sequence space denoted as $\mathcal{H}_{\vartheta}$, where $\vartheta\in\{p,bp,r\}$, as an extension of the Hahn sequence space $h$. Our investigation begins with an analysis of several topological properties of $\mathcal{H}_{\vartheta}$, apart from a comprehensive analysis of the relationship between Hahn double sequences and some other classical double sequence spaces. The $α-$dual, algebraic dual and $β(bp)-$dual, and $γ-$dual of the space $\mathcal{H}_{\vartheta}$ are detrmined. Furthermore, we define the determining set of $\mathcal{H}_{\vartheta}$ and we state the conditions concerning the characterization of four-dimensional (4D) matrix classes $(\mathcal{H}_{\vartheta},λ)$, where $λ=\{\mathcal{H}_{\vartheta},\mathcal{BV}, \mathcal{BV}_{\vartheta 0}, \mathcal{CS}_{\vartheta},\mathcal{CS}_{\vartheta 0},\mathcal{BS}\}$ and $(μ,\mathcal{H}_{\vartheta})$, where $μ=\{\mathcal{L}_u, \mathcal{C}_{\vartheta 0}, \mathcal{C}_{\vartheta},\mathcal{M}_{u}\}$. In conclusion, this research contributes non-standard investigation and various significant results into the space $\mathcal{H}_{\vartheta}$. The conducted results are deepen the understanding of the space $\mathcal{H}_{\vartheta}$ and open up new avenues for further research and applications in sequence space theory.
title On the Double Sequence Space $\mathcal{H}_{\vartheta}$ as an Extension of Hahn Space $h$
topic Functional Analysis
46A45, 40C05
url https://arxiv.org/abs/2406.05117