Results 21 to 30 of about 21,898 (243)

On an inequality of Lyapunov [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
According to Fink and St. Mary [2] the proof of (2) given in [1] is incorrect, and therefore the inequality is, as yet, undecided. For n = 2 and P2 0, (2) is known to be correct and also the best possible. This case was first proved by Lyapunov and is generally referred to as Lyapunov's theorem.
openaire   +2 more sources

Adaptive Fuzzy Sliding Control for Balancing Pendubot [PDF]

open access: yesRobotica & Management, 2020
In many cases of sliding control, the exact nonlinear functions of dynamic equations are difficult to be obtained. Because of this reason, the uncertainty of nonlinear functions of system can cause bad response under sliding control.
Van-Dong-Hai Nguyen   +6 more
doaj  

Lyapunov Spectrum Local Assignability of Linear Discrete Time-Varying Systems by Static Output Feedback

open access: yesIEEE Access, 2021
We consider a linear discrete time-varying input-output system. Our goal is to study the problem of local assignability of the Lyapunov spectrum by static output feedback control.
Adam Czornik   +4 more
doaj   +1 more source

Lyapunov’s inequality on timescales

open access: yesApplied Mathematics Letters, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fu-Hsiang Wong   +3 more
openaire   +1 more source

General Decay of Solutions for a Coupled System of Kirchhoff-Carrier-Type Viscoelastic Wave Equations with Balakrishnan-Taylor Damping [PDF]

open access: yesSahand Communications in Mathematical Analysis
This paper examines a coupled system of Kirchhoff-Carrier-type viscoelastic wave equations with Balarkrishnan-Taylor damping. The local existence and uniqueness of solutions for the given problem are proved by utilizing the Faedo-Galerkin method and ...
Bui Nam   +4 more
doaj   +1 more source

Dynamic Lyapunov functions

open access: yesAutomatica, 2011
Abstract Lyapunov functions are a fundamental tool to investigate the stability properties of equilibrium points in linear or nonlinear systems. Unfortunately, even if the existence of Lyapunov functions for asymptotically stable equilibrium points is guaranteed by converse Lyapunov theorems, the actual computation of the analytic expression of the ...
Sassano M., Astolfi A.
openaire   +3 more sources

The Minkowski–Lyapunov equation [PDF]

open access: yesAutomatica, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Adaptive Observer of Resistance in Sensorless Estimation of Speed and Position in Brushless DC Electric Motor

open access: yesCybernetics and Information Technologies, 2019
Estimating the speed and position using measurable electrical parameters would allow establishment of sensorless control systems for brushless DC motors, without the need to use expensive sensors for the rotor position and speed.
Slavov Danail
doaj   +1 more source

LABORATORY EQUIPMENT DURING PHARMACEUTICAL DEVELOPMENT OF SEMI-SOLID PREPARATIONS

open access: yesРазработка и регистрация лекарственных средств, 2019
Introduction. When developing drugs it is necessary to use laboratory equipment that simulates pilot and industrial equipment. For the production of semi-solid preparations the key equipment are rotor-stator dispersers and vacuum reactors-homogenizers ...
N. A. Lyapunov   +5 more
doaj   +1 more source

Neural Lyapunov Control

open access: yesCoRR, 2020
We propose new methods for learning control policies and neural network Lyapunov functions for nonlinear control problems, with provable guarantee of stability. The framework consists of a learner that attempts to find the control and Lyapunov functions, and a falsifier that finds counterexamples to quickly guide the learner towards solutions.
Ya-Chien Chang, Nima Roohi, Sicun Gao
openaire   +3 more sources

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