Results 81 to 90 of about 3,868 (256)
International 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
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Annals 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
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Fisheries 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
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Stability of -Jordan Homomorphisms from a Normed Algebra to a Banach Algebra
Abstract and Applied Analysis, 2013 We establish the hyperstability of -Jordan homomorphisms from a normed algebra to a Banach algebra, and also we show that an -Jordan homomorphism between two commutative Banach algebras is an -ring homomorphism.
Yang-Hi Lee
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On Some Recent Developments in Ulam's Type Stability
Abstract 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
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Hyperstability of cubic functional equation in ultrametric spaces [PDF]
Proyecciones (Antofagasta), 2017 In this paper, we present the hyperstability results of cubic functional equations in ultrametric Banach spaces.
Aribou, Youssef +2 more
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IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.This paper introduces a Hyperstable Model Reference Adaptive Controller (H‐MRAC) for induction motor drives, leveraging hyper‐stability principles, Popov's stability criterion, and Landau's propositions for robust adaptation. By explicitly accounting for system nonlinearities, it achieves a stable speed and flux regulation under both internal and ...
Belkacem Bekhiti +3 more
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A novel robust adaptive control algorithm and application to DTC-SVM of AC drives [PDF]
Serbian 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
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Hydrophobic Moieties Bestow Fast-Folding and Hyperstability on Collagen Triple Helices.
Journal 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
49, XXXYY: Parental Origin, Occurrence, and Clinical Phenotypes
Genetics Research , Volume 2025, Issue 1, 2025.49, XXXYY is a rare form of sex chromosomal aneuploidy that has been reported in 11 cases worldwide. The parental origin of the extra sex chromosomes and the specific clinical features of this condition remain unclear. We recruited a case with 49, XXXYY and performed genome‐wide copy number variation analysis using next‐generation sequencing.
Yufang Du +11 more
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