Results 1 to 10 of about 54,491 (191)

Partial Derivative Approach to the Integral Transform for the Function Space in the Banach Algebra. [PDF]

open access: yesEntropy (Basel), 2020
We investigate some relationships among the integral transform, the function space integral and the first variation of the partial derivative approach in the Banach algebra defined on the function space.
Young Sik K.
europepmc   +2 more sources

Automatic Continuity of Almost $n$-Multiplicative Linear Functionals [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2022
We generalize a theorem due to Jarosz, by proving that every almost $n$-multiplicative linear functional on Banach algebra $A$ is automatically continuous.
Abbas Zivari-Kazempour
doaj   +1 more source

Biamenability of Banach algebras and its applications [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2023
In this paper, we introduce the concept of biamenability of Banach algebras and we show that despite the apparent similarities between amenability and biamenability of Banach algebras, they lead to very different, and somewhat opposed, theories.
Sedigheh Barootkoob   +1 more
doaj   +1 more source

New Kind of Banach Algebra Via Proximit structure

open access: yesWasit Journal for Pure Sciences, 2023
This article introduces the concept of Banach proximit algebra and examines several results in this new context. We give new definitions for the terms "proximit algebra," "commutative proximit algebra," "identity proximit algebra," and "normed proximit ...
Dhuha Ebada, Boushra Y. Hussein
doaj   +1 more source

Norm-Controlled Inversion of Banach algebras of infinite matrices

open access: yesComptes Rendus. Mathématique, 2020
In this paper we provide a polynomial norm-controlled inversion of Baskakov–Gohberg–Sjöstrand Banach algebra in a Banach algebra ${\mathcal{B}}(\ell ^q)$, $1\le q \le \infty $, which is not a symmetric $*-$ Banach algebra.
Fang, Qiquan, Shin, Chang Eon
doaj   +1 more source

Banach Synaptic Algebras [PDF]

open access: yesInternational Journal of Theoretical Physics, 2017
Using a representation theorem of Erik Alfsen, Frederic Schultz, and Erling Stormer for special JB-algebras, we prove that a synaptic algebra is norm complete (i.e., Banach) if and only if it is isomorphic to the self-adjoint part of a Rickart C*-algebra. Also, we give conditions on a Banach synaptic algebra that are equivalent to the condition that it
Foulis, David J., Pulmannov, Sylvia
openaire   +3 more sources

On the Wielandt and Bhatt-Dedania Theorems [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
In this paper, we generalize a norm topology in Wielandt’s theorem for unital normed algebras and in Bhatt-Dedania’s theorem for Banach algebras, with each element being a zero topological divisor, by using 2-normed algebra and 2-Banach ...
Ekram Abdullah   +2 more
doaj   +1 more source

A bicommutant theorem for dual Banach algebras [PDF]

open access: yes, 2010
A dual Banach algebra is a Banach algebra which is a dual space, with the multiplication being separately weak$^*$-continuous. We show that given a unital dual Banach algebra $\mc A$, we can find a reflexive Banach space $E$, and an isometric, weak ...
Daws, Matthew
core   +1 more source

$(-1)$-Weak Amenability of Second Dual of Real Banach Algebras [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
Let $ (A,| cdot |) $ be a real Banach algebra, a complex algebra $ A_mathbb{C} $ be a complexification of $ A $ and $ | | cdot | | $ be an algebra norm on  $ A_mathbb{C}  $  satisfying a simple condition together with the norm $ | cdot | $ on $ A$.
Hamidreza Alihoseini   +1 more
doaj   +1 more source

Nice connecting paths in connected components of sets of algebraic elements in a Banach algebra [PDF]

open access: yes, 2016
Generalizing earlier results about the set of idempotents in a Banach algebra, or of self-adjoint idempotents in a $C^*$-algebra, we announce constructions of nice connecting paths in the connected components of the set of elements in a Banach algebra ...
Makai, Jr., E., Zemánek, Jaroslav
core   +2 more sources

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