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相关论文: BSE-property for some certain Segal and Banach alg…

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In this paper, we study the BSE-property for some certain Segal algebras. As an application, we give some results on subalgebras of the Fourier algebra and provide a wide range of Banach algebras with the BSE-property. Also, we give a…

泛函分析 · 数学 2015-08-13 Mohammad Fozouni

Let $G$ be a locally compact abelian group, and let $\omega:G \to [1,\infty)$ be a measurable weight, i.e., $\omega$ is measurable, and $\omega(s+t)\leq \omega(s)\omega(t)$ for all $s, t \in G$. Let $\mathcal{A}$ be a semisimple commutative…

泛函分析 · 数学 2026-03-23 Jekwin Dabhi , Prakash Dabhi

Let $ \mathcal{A} $ be a commutative and semisimple Banach algebra with identity norm one and $ G $ be an abelian locally compact Hausdorff group. In this paper, we study BSE-Property for $L^1(G,\mathcal A)$ and show that $L^1(G,\mathcal…

泛函分析 · 数学 2022-06-23 Ali Rejali , Mitra Amiri

Let $A$ be a commutative semisimple Arens regular unital Banach algebra. The correlation between the BSE-property of the Banach algebra $A$ and its second duals are assessed. It is found and approved that if $A$ is a BSE-algebra, then so is…

泛函分析 · 数学 2022-01-19 Ali Rejali , Maryam Aghakoochaki

Let $\mathcal A$ be a separable Banach algebra, $G$ be a locally compact Hausdorff group and $1< p<\infty$. In this paper, we first provide a necessary and sufficient condition, for which $L^p(G,\mathcal A)$ is a Banach algebra, under…

泛函分析 · 数学 2022-06-16 Fatemeh Abtahi , Mitra Amiri , Ali Rejali

We investigate generalized amenability and biflatness properties of various (operator) Segal algebras in both the group algebra, L1(G), and the Fourier algebra, A(G), of a locally compact group, G.

泛函分析 · 数学 2019-08-15 Ebrahim Samei , Nico Spronk , Ross Stokke

We continue the investigation of notions of approximate amenability that were introduced in work of the second and third authors. It is shown that every boundedly approximately contractible Banach algebra has a bounded approximate identity.…

泛函分析 · 数学 2009-03-26 Y. Choi , F. Ghahramani , Y. Zhang

Let $A$ and $B$ be commutative semisimple Banach algebras. In this paper, the $BSE$ and $BED$- property of tensor Banach algebra $A{\otimes}_{\gamma} B$ with respect to the Banach algebras $A$ and $B$ are assesed. In particular, $BSE$ and…

泛函分析 · 数学 2022-12-23 Maryam Aghakoochai , Ali Rejali

Let G be a locally compact group, A(G) its Fourier algebra and L1(G) the space of Haar integrable functions on G. We study the Segal algebra SA(G)=A(G)\cap L1(G) in A(G). It admits an operator space structure which makes it a completely…

泛函分析 · 数学 2008-05-23 Brian E. Forrest , Nico Spronk , Peter J. Wood

Let $G$ and $H$ be locally compact groups. $BM(G, H)$ denoted the Banach algebra of bounded bilinear forms on $C_{0}(G)\times C_{0}(H)$.In this paper, the homological properties of Bimeasure algebras are investigated. It is found and…

泛函分析 · 数学 2023-01-23 Maryam Aghakoochai , Ali Rejali

In this paper we first show that for a locally compact amenable group $G$, every proper abstract Segal algebra of the Fourier algebra on $G$ is not approximately amenable; consequently, every proper Segal algebra on a locally compact…

泛函分析 · 数学 2012-07-17 Mahmood Alaghmandan

In this paper we will study the projetivity of various natural modules associated to operator Segal algebras of the Fourier algebra of a locally compact group. In particular, we will focus on the question of identifying when such modules…

泛函分析 · 数学 2009-07-07 Brian E. Forrest , Hun Hee Lee , Ebrahim Samei

In this paper, we introduce a homological notion of left $\phi$-biprojectivity for Banach algebras, where $\phi$ is a non-zero multiplicative linear functional. We show that for a locally compact group $G$, the Segal algebra $S(G)$ is left…

泛函分析 · 数学 2021-10-28 Amir Sahami

We introduce the notion of a (noncommutative) C*-Segal algebra as a Banach algebra which is a dense ideal in a C*-algebra. Several basic properties are investigated and, with the aid of the theory of multiplier modules, the structure of…

算子代数 · 数学 2012-09-25 Jukka Kauppi , Martin Mathieu

Let $G$ be a locally compact group and $A$ be a commutative semisimple Banach algebra over the scalar field $\mathbb{C}$. The correlation between different types of $BSE$- Banach algebras $A$, and the Banach algebras $L^{1}(G, A)$ are…

泛函分析 · 数学 2022-12-20 Maryam Aghakoochaki , Ali Rejali

In this paper we are going to investigate the approximate biprojectivity and the $\phi$-biflatness of some Banach algebras related to the locally compact groups. We show that a Segal algebra $S(G)$ is approximate biprojective if and only if…

泛函分析 · 数学 2015-02-05 A. Sahami , A. Pourabbas

In recent work of the authors the notion of a derivation being approximately semi-inner arose as a tool for investigating (approximate) amenability questions for Banach algebras. Here we investigate this property in its own right, together…

泛函分析 · 数学 2019-10-10 F. Ghahramani , R. J. Loy

The notions of module pseudo-amenable and module pseudo-contractible Banach algebras are introduced. For a Banach algebra with bounded approximate identity, module pseudo-amenability and module approximate amenability are the same…

泛函分析 · 数学 2015-06-10 Abasalt Bodaghi , Ali Jabbari

In this paper, we characterize the (left) multiplier algebra of a semidirect product algebra ${\mathcal A}={\mathcal B}\oplus {\mathcal I}$, where ${\mathcal I}$ and ${\mathcal B}$ are closed two-sided ideal and closed subalgebra of…

泛函分析 · 数学 2015-09-04 Mehdi Nemati , Hossein Javanshiri

We define and study the notion of property $(\rm T)$ for Banach algebras, generalizing the one from $C^*$-algebras. For a second countable locally compact group $G$ and a given family of Banach spaces $\mathcal E$, we prove that our Banach…

泛函分析 · 数学 2024-08-23 Emilie Mai Elkiær , Sanaz Pooya
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