Results 31 to 40 of about 2,446 (245)

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

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

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 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

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

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

About robust hyperstability and dissipativity of linear time-invariant dynamic systems subject to hyperstable controllers and unstructured delayed state and output disturbances

open access: yesCogent Engineering, 2018
This paper considers the robust asymptotic closed-loop hyperstability of a nominal time-invariant plant with an associate strongly positive real transfer function subject to unstructured disturbances in the sate and output.
M. De la Sen
doaj   +1 more source

Orthogonally Fixed Points and (m, m)-Hom-Derivation Equations

open access: yesJournal of Mathematics, 2022
In this paper, we introduce the concept of m-Hom-m-derivation (briefly (m, m)-Hom-derivation) equations in orthogonally Banach algebras. We use the orthogonally fixed point to investigate the hyperstability of (m, m)-Hom-derivation equations.
Abdollah Dinmohammadi
doaj   +1 more source

Recovery of critically endangered Nassau grouper (Epinephelus striatus) in the Cayman Islands following targeted conservation actions. [PDF]

open access: yes, 2020
Many large-bodied marine fishes that form spawning aggregations, such as the Nassau grouper (Epinephelus striatus), have suffered regional overfishing due to exploitation during spawning.
Bush, Phillippe   +6 more
core   +1 more source

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