Results 41 to 50 of about 3,894 (258)

Adaptive control of nonlinear dynamical systems using a model reference approach [PDF]

open access: yes, 2003
In this paper we consider using a model reference adaptive control approach to control nonlinear systems. We consider the controller design and stability analysis associated with these type of adaptive systems.
Wagg, D.J.
core   +1 more source

Stability of a generalization of the Fréchet functional equation

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2015
We prove some stability and hyperstability results for a generalization of the well known Fréchet functional equation, stemming from one of the characterizations of the inner product spaces. As the main tool we use a fixed point theorem for the function
Renata Malejki
doaj   +1 more source

Adaptive Controller Design for Faulty UAVs via Quantum Information Technology

open access: yesInternational Journal of Advanced Robotic Systems, 2012
In this paper, an adaptive controller is designed for a UAV flight control system against faults and parametric uncertainties based on quantum information technology and the Popov hyperstability theory.
Fuyang Chen, Rui Hou, Gang Tao
doaj   +1 more source

Application of hyperstability theory to interference cancelling [PDF]

open access: yes, 1994
An alternative to the usual adaptive noise cancelling method devoted to removing interference is presented. In the conventional methodology to implement adaptive cancellers a reference signal is necessary correlated with the interference.
Bertran Albertí, Eduardo   +1 more
core   +1 more source

Almost Multi-Cubic Mappings and a Fixed Point Application [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
The aim of this paper is to introduce $n$-variables mappings which are cubic in each variable and to apply a fixed point theorem for the Hyers-Ulam stability of such mapping in non-Archimedean normed spaces.
Nasrin Ebrahimi Hoseinzadeh   +2 more
doaj   +1 more source

Some hyperstability results of a p-radical functional equation related to quartic mappings in non-archimedean Banach spaces

open access: yesProyecciones (Antofagasta), 2021
The aim of this paper is to introduce and solve the following p-radical functional equation related to quartic mappings. where f is a mapping from R into a vector space X and p ≥ 3 is an odd natural number.
Ahmed Nuino   +2 more
semanticscholar   +1 more source

Asymptotic Hyperstability of a Class of Linear Systems under Impulsive Controls Subject to an Integral Popovian Constraint

open access: yesAbstract and Applied Analysis, 2013
This paper is focused on the study of the important property of the asymptotic hyperstability of a class of continuous-time dynamic systems. The presence of a parallel connection of a strictly stable subsystem to an asymptotically hyperstable one in the ...
M. De la Sen   +2 more
doaj   +1 more source

On the stability of a Cauchy type functional equation

open access: yesDemonstratio Mathematica, 2018
In this work, the Hyers-Ulam type stability and the hyperstability of the functional equationare proved.
Lee Jung Rye   +3 more
doaj   +1 more source

On Some Relations between Accretive, Positive, and Pseudocontractive Operators and Passivity Results in Hilbert Spaces and Nonlinear Dynamic Systems [PDF]

open access: yes, 2017
This paper investigates some parallel relations between the operators (I-G) and G in Hilbert spaces in such a way that the pseudocontractivity, asymptotic pseudocontractivity, and asymptotic pseudocontractivity in the intermediate sense of one of them ...
De la Sen Parte, Manuel
core   +3 more sources

Stability of the Fréchet Equation in Quasi-Banach Spaces

open access: yesMathematics, 2020
We investigate the Hyers–Ulam stability of the well-known Fréchet functional equation that comes from a characterization of inner product spaces. We also show its hyperstability on a restricted domain. We work in the framework of quasi-Banach spaces.
Sang Og Kim
doaj   +1 more source

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