Results 31 to 40 of about 1,545 (199)

Superstability of $m$-additive maps on complete non--Archimedean spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2015
The stability problem of the functional equation was conjectured by Ulam and was solved by Hyers in the case of additive mapping. Baker et al. investigated the superstability of the functional equation from a vector space to real numbers.In this paper ...
Ismail Nikoufar
doaj  

Superstability and symmetry

open access: yesAnnals of Pure and Applied Logic, 2016
This paper continues the study of superstability in abstract elementary classes (AECs) satisfying the amalgamation property. In particular, we consider the definition of $μ$-superstability which is based on the local character characterization of superstability from first order logic.
openaire   +3 more sources

Superstability of extended fractional differential equations

open access: yesThe Pečarić Journal of Mathematical Inequalities
This work advances the stability theory of fractional differential equations by establishing superstability criteria for a significant class of problems involving the Caputo-Katugampola derivative.
A. Makhlouf, Lassaad Mchiri
semanticscholar   +1 more source

Superstability and Solution of The Pexiderized Trigonometric Functional Equation

open access: yes, 2020
The present work continues the study for the superstability and solution of the Pexider type functional equation , which is the mixed functional equation represented by sum of the sine, cosine, tangent, hyperbolic trigonometric, and exponential functions.
G. Kim
semanticscholar   +1 more source

Superstable quasi-varieties

open access: yesAnnals of Pure and Applied Logic, 1994
A universal algebra \(A\) is affine if for some ring \(R\) there is a left \(R\)-module \(M\) which is defined on the underlying set of \(A\) so that \(A\) and \(M\) have the same polynomials. \(A\) is combinatorial if for every term \(\tau(\overline{x}, \overline{y})\) and every \(\overline {a}\), \(\overline {b}\), \(\overline{c}\), \(\overline{d}\),
Bradd Hart, Sergei Starchenko
openaire   +2 more sources

Superstability and symmetry [PDF]

open access: yesAnnals of Pure and Applied Logic, 2015
This paper continues the study of superstability in abstract elementary classes (AECs) satisfying the amalgamation property. In particular, we consider the definition of $\mu$-superstability which is based on the local character characterization of ...
Monica M. VanDieren
semanticscholar   +1 more source

Superstability and Stability of the Pexiderized Multiplicative Functional Equation

open access: yesJournal of Inequalities and Applications, 2010
We obtain the superstability of the Pexiderized multiplicative functional equation f(xy)=g(x)h(y) and investigate the stability of this equation in the following form: 1/(1+ψ(x,y))≤f(xy)/g(x)h(y)≤1+ψ(x,y).
Young Whan Lee
doaj   +2 more sources

Single‐Field Evolution Rule Governs the Dynamics of Representational Drift in Mouse Hippocampal Dorsal CA1 Region

open access: yesAdvanced Science, Volume 13, Issue 8, 9 February 2026.
Long‐term hippocampal place‐code dynamics are investigated using calcium imaging across weeks of maze navigation. Analyses reveal a novelty‐irrelevant Single‐Field Evolution Rule (SFER), where active fields promote persistence and inactive fields decline.
Cong Chen   +10 more
wiley   +1 more source

On Asymptotic Behavior of a 2-Linear Functional Equation

open access: yesMathematics, 2022
In this paper, we deal with a 2-linear functional equation. The Hyers-Ulam stability of this functional equation is shown on some restricted unbounded domains, and the obtained results are applied to get several hyperstability consequences.
Jae-Hyeong Bae   +3 more
doaj   +1 more source

EQUIVALENT DEFINITIONS OF SUPERSTABILITY IN TAME ABSTRACT ELEMENTARY CLASSES [PDF]

open access: yesJournal of Symbolic Logic (JSL), 2015
In the context of abstract elementary classes (AECs) with a monster model, several possible definitions of superstability have appeared in the literature. Among them are no long splitting chains, uniqueness of limit models, and solvability.
R. Grossberg, S. Vasey
semanticscholar   +1 more source

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