The Bochner-Eberlein-Doss property for θ-Lau product of Banach algebras

Let (A,∥⋅∥A) and (B,∥⋅∥B) be two commutative Banach algebras with nonempty character spaces and θ∈Δ(B). The aim of this paper is to verify the BED property for the θ-Lau product of A and B, denoted by A×θB, whenever A and B are non-unital and semisimple. First, along with all available results regarding θ-Lau product of Banach algebras, we prove that A×θB is without order if and only if B is so. Then as the main result of the present work, we establish that A×θB is a BED algebra if and only if Ae and B are so.

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Publication Details

Journal
Communications in Algebra
Published
2026-09-17
DOI
https://doi.org/10.1080/00927872.2026.2725020
Primary Topic
Advanced Operator Algebra Research
Type
article
Field-Weighted Citation Impact
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The Bochner-Eberlein-Doss property for θ-Lau product of Banach algebras

Fatemeh Abtahi, Fatemeh Doustmohammadi, Bahram Ghasemi
Communications in Algebra
Advanced Operator Algebra Research
article

The Bochner-Eberlein-Doss property for θ-Lau product of Banach algebras

Fatemeh Abtahi, Fatemeh Doustmohammadi, Bahram Ghasemi
article en

Abstract

Let (A,∥⋅∥A) and (B,∥⋅∥B) be two commutative Banach algebras with nonempty character spaces and θ∈Δ(B). The aim of this paper is to verify the BED property for the θ-Lau product of A and B, denoted by A×θB, whenever A and B are non-unital and semisimple. First, along with all available results regarding θ-Lau product of Banach algebras, we prove that A×θB is without order if and only if B is so. Then as the main result of the present work, we establish that A×θB is a BED algebra if and only if Ae and B are so.

Communications in Algebra
University of Isfahan (IR)
Openalex Percentile: Top 5%
Advanced Operator Algebra Research
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