Results 1 to 10 of about 57 (57)

LW∗W-property and topological centers of banach algebras [PDF]

open access: yesJournal of Hyperstructures, 2012
In this paper we introduce the new concepts LW∗Wproperty and RW∗W-property for a Banach algebra A. Under certain conditions, we show that if A has LW∗W-property and RW∗W- property, then A is Arens regular.
K. Haghnejad Azar
doaj   +1 more source

Lw∗wc and Rw∗wc and weak amenability of banach algebras [PDF]

open access: yesJournal of Hyperstructures, 2012
We introduce some new concepts as lef t − weak∗ − weak convergence property [Lw∗wc−property] and right−weak∗− weak convergence property [Rw∗wc−property] for Banach algebra A. Suppose that A ∗ and A ∗∗, respectively, have Rw∗wc−property and Lw∗wc−property,
K. Haghnejad Azar, Z. Ranjbar
doaj   +1 more source

Factorization properties and generalization of multipliers in module actions [PDF]

open access: yesJournal of Hyperstructures, 2015
In this paper, We establish some necessary and sufficient conditions for relationships between the topological centers of module actions and factorization properties of them and we give a new definition for multiplier in module actions with some results.
Kazem Haghnejad Azar
doaj   +1 more source

On Orlicz sequence algebras

open access: yesJournal of Inequalities and Applications, 2023
We study Orlicz sequence algebras and their properties. In particular, we fully characterize biflat and biprojective Orlicz sequence algebras as well as weakly amenable and approximately (semi-)amenable Orlicz sequence algebras. As a consequence, we show
Paweł Foralewski, Krzysztof Piszczek
doaj   +1 more source

Note on Arens regularity of symmetric tensor products

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
We investigate symmetric regularity of sums of symmetric tensor products of Banach spaces and Arens regularity of symmetric tensor products of Banach algebras. An example for the Hilbert space is obtained.
O.G. Taras, A.V. Zagorodnyuk
doaj   +1 more source

The second conjugate algebras of Banach algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
In this paper, we study Arens regularity of a Banach algebra A. In particular, we give characterizations for A to be Arens regular.
Pak-Ken Wong
doaj   +1 more source

Arens Regularity of Certain Class of Banach Algebras

open access: yesAbstract and Applied Analysis, 2011
We study Arens regularity of the left and right module actions of 𝐴 on 𝐴(𝑛), where 𝐴(𝑛) is the nth dual space of a Banach algebra 𝐴, and then investigate (quotient) Arens regularity of 𝑈=𝐴⊕𝐴(𝑛) as a module extension of Banach algebras.
Abbas Sahleh, Abbas Zivari-Kazempour
doaj   +1 more source

φ-Multipliers on Banach Algebras and Topological Modules

open access: yesAbstract and Applied Analysis, 2015
We prove some results concerning Arens regularity and amenability of the Banach algebra MφA of all φ-multipliers on a given Banach algebra A. We also consider φ-multipliers in the general topological module setting and investigate some of their ...
Marjan Adib
doaj   +1 more source

On the Properties of the Arens Regularity of Bounded Bilinear Mappings

open access: yesپژوهش‌های ریاضی, 2020
Introduction       Let ,  and be Banach spaces and  be a bilinear mapping. In 1951 Arens found two extension for  as  and  from  into .  The mapping  is the unique extension of  such that  from  into  is  continuous for every , but the mapping  is not in
Abotalb Shikh Ali   +2 more
doaj  

On the topological centers of module actions [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2016
In this paper, we  study the Arens regularity properties of module actions. We investigate some properties of topological centers of module actions ${Z}^ell_{B^{**}}(A^{**})$ and  ${Z}^ell_{A^{**}}(B^{**})$ with some conclusions in group algebras.
Kazem Haghnejad Azar
doaj  

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