Results 61 to 70 of about 976 (205)
Abstract and Applied Analysis, 2011 We investigate the stability and superstability of ternary quadratic higher derivations in non-Archimedean ternary algebras by using a version of fixed point theorem via quadratic functional equation.
M. Eshaghi Gordji +3 more
doaj +1 more source
Annals 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 +3 more sources
Journal 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
Superstability of Approximate Cosine Type Functions on the Monoid R² [PDF]
, 2012 In this paper, we study the superstability problem for the cosine type functional equation on the commutative monoid (R 2 , ×).
E Elqorachi, A Charifi, B Bouikhalene
core +2 more sources
Higher Ring Derivation and Intuitionistic Fuzzy Stability
Abstract and Applied Analysis, 2012 We take account of the stability of higher ring derivation in intuitionistic fuzzy Banach algebra associated to the Jensen type functional equation. In addition, we deal with the superstability of higher ring derivation in intuitionistic fuzzy Banach ...
Ick-Soon Chang
doaj +1 more source
On the superstability of generalized d'Alembert harmonic functions [PDF]
, 2016 The aim of this paper is to study the superstability problem of the d'Alembert type functional equation f(x+y+z)+f(x+y+σ(z))+f(x+σ(y)+z)+f(σ(x)+y+z)=4f(x)f(y)f(z) for all x,y,z ∈ G, where G is an abelian group and σ: G → G is an endomorphism such that ...
Iz-iddine EL-Fassi, EL-Fassi, Iz-iddine
core +2 more sources
Journal of Symbolic Logic, 2005 AbstractIt is proved that all groups of finite U-rank that have the descending chain condition on definable subgroups are totally transcendental. A corollary is that any stable group that is definable in an o-minimal structure is totally transcendental of finite Morley rank.
openaire +4 more sources
Limit models in strictly stable abstract elementary classes
Mathematical 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 the Intuitionistic Fuzzy Stability of Ring Homomorphism and Ring Derivation
Abstract and Applied Analysis, 2013 We take into account the stability of ring homomorphism and ring derivation in intuitionistic fuzzy Banach algebra associated with the Jensen functional equation.
Jaiok Roh, Ick-Soon Chang
doaj +1 more source
Non‐Metal Ion Storage in Zinc‐Organic Batteries
Advanced 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