Results 31 to 40 of about 2,620 (248)

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

Analysis of success of achieving fishing mortality levels for the Northwest Mediterranean Multi-annual plan. [PDF]

open access: yes, 2017
The evaluation of multi-annual plans to manage demersal fisheries performed by STECF (2016) is revisited to calculate an additional indicator of fishing mortality that better captures the effect of using ranges.
GAMITO JARDIM JOSÉ ERNESTO   +1 more
core   +1 more source

Hyperstability of Some Functional Equations on Restricted Domain

open access: yesJournal of Function Spaces, 2017
The paper concerns functions which approximately satisfy, not necessarily on the whole linear space, a generalization of linear functional equation. A Hyers-Ulam stability result is proved and next applied to give conditions implying the hyperstability ...
Anna Bahyrycz, Jolanta Olko
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

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

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

Hybrid Semi-Active Mass Dampers in Structures; Assessing and Optimising Their Damping Capacity [PDF]

open access: yes, 2017
The paper discusses the “software”-optimisation of a novel, energy-, cost- efficient hybrid semi-active tuned mass damper configuration applicable to earthquake and wind structural vibration mitigation.
Amini   +14 more
core   +1 more source

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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