Results 81 to 90 of about 3,894 (258)

Equivalence for Various Forms of Quadratic Functional Equations and Their Generalized Hyers–Ulam–Rassias Stability

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2023
In this manuscript, we study the properties and equivalence results for different forms of quadratic functional equations. Using the Brzdȩk and Ciepliński fixed-point approach, we investigate the generalized Hyers–Ulam–Rassias stability for the 3 ...
Ravinder Kumar Sharma, Sumit Chandok
doaj   +1 more source

The hyperstability of AQ-Jensen functional equation on 2-divisible abelian group and inner product spaces

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2015
In this paper, we prove the hyperstability of the following mixed additive-quadratic-Jensen functional equation 2f(x+y2)+f(x−y2)+f(y−x2)=f(x)+f(y)$$2f({{x + y} \over 2}) + f({{x - y} \over 2}) + f({{y - x} \over 2}) = f(x) + f(y)$$ in the class of ...
EL-Fassi Iz-iddine, Kabbaj Samir
doaj   +1 more source

Radiation‐Resistant Bacteria Deinococcus radiodurans‐Derived Extracellular Vesicles as Potential Radioprotectors

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 17, July 4, 2025.
Deinococcus radiodurans‐derived extracellular vesicles (R1‐EVs) provide radioprotection against total‐body irradiation‐induced acute radiation syndrome in mice. R1‐EVs mitigate oxidative damage by scavenging free radicals, promoting intestinal repair, enhancing hematopoietic function, and modulating immune responses. This study highlights the potential
Jeong Moo Han   +7 more
wiley   +1 more source

On Some Recent Developments in Ulam's Type Stability

open access: yesAbstract and Applied Analysis, 2012
We present a survey of some selected recent developments (results and methods) in the theory of Ulam's type stability. In particular we provide some information on hyperstability and the fixed point methods.
Nicole Brillouët-Belluot   +2 more
doaj   +1 more source

Getting Scarce and Lure Shy: Impacts of Recreational Fishing on Coastal Northern Pike (Esox lucius) Abundance, Size Structure and Vulnerability to Angling

open access: yesFisheries Management and Ecology, Volume 32, Issue 3, June 2025.
ABSTRACT Controlled experiments have shown that northern pike (Esox lucius) is able to develop lure avoidance, but whether such patterns exist in the wild is unknown. We assessed the impact of recreational fishing on a natural population of pike in the southern Baltic Sea, from samples of three pairs of partially protected areas (pMPA) and nearby ...
Phillip Roser   +4 more
wiley   +1 more source

A novel robust adaptive control algorithm and application to DTC-SVM of AC drives [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2010
In this paper a new robust adaptive control algorithm for AC machine is presented. The main feature of this algorithm is that minimum synthesis is required to implement the strategy.
Belkacem Sebti   +2 more
doaj   +1 more source

Discrete-time adaptive control of robot manipulators [PDF]

open access: yes
A discrete-time model reference adaptive control scheme is developed for trajectory tracking of robot manipulators. Hyperstability theory is utilized to derive the adaptation laws for the controller gain matrices.
Tarokh, M.
core   +1 more source

Hydrophobic Moieties Bestow Fast-Folding and Hyperstability on Collagen Triple Helices.

open access: yesJournal of the American Chemical Society, 2019
Trans amide bonds and fast cis- trans isomerization of Xaa-Pro bonds are crucial for the stability and folding rate of collagen, the most abundant protein in mammals.
Jasmine Egli   +4 more
semanticscholar   +1 more source

Some hyperstability results for a Cauchy-Jensen type functional equation in 2-Banach spaces

open access: yes, 2020
In this paper, we investigate some stability and hyperstability results for the following Cauchy-Jensen functional equation in 2-Banach spaces by using Brzdȩk’s fixed point approach.
K. Y. N. Sayar, A. Bergam
semanticscholar   +1 more source

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