Results 51 to 60 of about 419 (187)

Estimation of Inexact Multimixed Additive‐Quadratic Mappings in Fuzzy Normed Spaces

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In the current study, we introduce a new model of multimixed additive‐quadratic mapping and then show that the system of several mixed additive‐quadratic equations defining a multimixed additive‐quadratic mapping can be unified and presented as a single equation. We also show that such mappings under some conditions are multi‐additive, multi‐quadratic,
Abasalt Bodaghi, Pramita Mishra
wiley   +1 more source

On lattice oscillator equilibrium equation with positive infinite-range many-body potentials

open access: yesCondensed Matter Physics, 2010
The symmetrized lattice Kirkwood-Salsburg (KS) equation for the Gibbs grand canonical correlation functions of the lattice oscillators, interacting via positive infinite-range manybody potentials, is solved.
W.I. Skrypnik
doaj   +1 more source

Thermal Applications of Stability Analysis of Cubic Functional Equation in Banach Spaces and Intuitionistic Fuzzy Normed Spaces

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This paper analyzes the stability of the Euler–Lagrange–Jensen cubic functional equation in the context of Banach spaces and Intuitionistic Fuzzy Normed Spaces (IFN‐Spaces). We use both direct and fixed point techniques to establish the generalized Ulam stability of the cubic functional equation under various norm‐based constraints.
Subramani Karthikeyan   +4 more
wiley   +1 more source

Some Centrally Extended Derivations on Banach Algebras

open access: yesMathematics
In this article, we consider centrally extended derivations on Banach algebras. We first establish the stability of centrally extended derivations on Banach algebras.
Ick-Soon Chang, Jaiok Roh
doaj   +1 more source

Approximation of Generalized Left Derivations

open access: yesAbstract and Applied Analysis, 2008
We need to take account of the superstability for generalized left derivations (resp., generalized derivations) associated with a Jensen-type functional equation, and we also deal with problems for the Jacobson radical ranges of left derivations (resp ...
Sheon-Young Kang, Ick-Soon Chang
doaj   +1 more source

On the Superstability of Lobačevskiǐ’s Functional Equations with Involution [PDF]

open access: yes, 2016
Let G be a uniquely 2-divisible commutative group and let f,g:G→C and σ:G→G be an involution. In this paper, generalizing the superstability of Lobačevskiǐ’s functional equation, we consider f(x+σy)/22-g(x)f(y)≤ψ(x) or ψ(y) for all x,y∈G, where ψ:G→R ...
Misuk Ha, Jaeyoung Chung, Bogeun Lee
core   +1 more source

Limit models in strictly stable abstract elementary classes

open access: yesMathematical Logic Quarterly, Volume 70, Issue 4, Page 438-453, November 2024.
Abstract In this paper, we examine the locality condition for non‐splitting and determine the level of uniqueness of limit models that can be recovered in some stable, but not superstable, abstract elementary classes. In particular we prove the following. Suppose that K$\mathcal {K}$ is an abstract elementary class satisfying (1)the joint embedding and
Will Boney, Monica M. VanDieren
wiley   +1 more source

On superstability of derivations in Banach algebras

open access: yesOpen Mathematics
In this article, we consider some types of derivations in Banach algebras. In detail, we investigate the question of whether the superstability can be achieved under some conditions for some types of derivations, such as Jordan derivations, generalized ...
Chang Ick-Soon, Kim Hark-Mahn, Roh Jaiok
doaj   +1 more source

Non‐Metal Ion Storage in Zinc‐Organic Batteries

open access: yesAdvanced Science, Volume 11, Issue 19, May 22, 2024.
An overview of versatile non‐metallic cationic and anionic charge carriers in zinc‐organic batteries is demonstrated, with a comparison of their respective properties and chemical interactions with redox‐active organic materials, giving insights into the impact of ion types on electrochemical performances.
Ziyang Song   +4 more
wiley   +1 more source

On superstable CSA-groups

open access: yesAnnals of Pure and Applied Logic, 2008
A group is CSA (conjugately separated abelian) if all maximal abelian subgroups are conjugately separated, or malnormal (i.e.\ \(H\cap H^g=\{1\}\) for all \(g\notin H\)). Equivalently, the centralizer of every non-trivial element is abelian and self-normalizing.
openaire   +2 more sources

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