Results 1 to 10 of about 4,562 (230)

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

open access: yesEntropy, 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.
Kim Young Sik
doaj   +2 more sources

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   +3 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

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

Conjugations on Banach $$*$$-algebras

open access: yesAnnals of Functional Analysis, 2020
The notion of conjugation is extended to Banach ∗-algebras. The aim of this paper is to characterize conjugations on the Banach algebra of all bounded linear operators on a complex Hilbert space, the algebra of J-symmetric operators on a complex Hilbert space with given conjugation J and the algebra of all complex valued continuous functions, defined ...
Dijana Ilišević, Marek Ptak
openaire   +2 more sources

$(-1)$-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

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

Asymptotic aspect of derivations in Banach algebras

open access: yesJournal of Inequalities and Applications, 2017
We prove that every approximate linear left derivation on a semisimple Banach algebra is continuous. Also, we consider linear derivations on Banach algebras and we first study the conditions for a linear derivation on a Banach algebra.
Jaiok Roh, Ick-Soon Chang
doaj   +1 more source

The Extended Cone b-Metric-like Spaces over Banach Algebra and Some Applications

open access: yesMathematics, 2022
In this paper, we introduce the structure of extended cone b-metric-like spaces over Banach algebra as a generalization of cone b-metric-like spaces over Banach algebra.
Jerolina Fernandez   +4 more
doaj   +1 more source

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