Results 21 to 30 of about 29,097,853 (357)

Numerical Methods That Preserve a Lyapunov Function for Ordinary Differential Equations

open access: yesMathematics, 2022
The paper studies numerical methods that preserve a Lyapunov function of a dynamical system, i.e., numerical approximations whose energy decreases, just like in the original differential equation.
Yadira Hernández-Solano, Miguel Atencia
doaj   +1 more source

Noise-Induced Stabilization of Planar Flows I [PDF]

open access: yes, 2015
We show that the complex-valued ODE \begin{equation*} \dot z_t = a_{n+1} z^{n+1} + a_n z^n+\cdots+a_0, \end{equation*} which necessarily has trajectories along which the dynamics blows up in finite time, can be stabilized by the addition of an ...
Herzog, David P., Mattingly, Jonathan C.
core   +4 more sources

Control Lyapunov Functions and Zubov's Method [PDF]

open access: yesSIAM Journal on Control and Optimization, 2008
For finite dimensional nonlinear control systems we study the relation between asymptotic null-controllability and control Lyapunov functions. It is shown that control Lyapunov functions may be constructed on the domain of asymptotic null-controllability as viscosity solutions of a first order PDE that generalizes Zubov's equation. The solution is also
CAMILLI, FABIO, L. Gruene, Fabian Wirth
openaire   +3 more sources

THE DYNAMICAL INVESTIGATION OF HEAT TRANSFER AND TEMPERATURE CHANGES OF THE SHELL AND TUBE HEAT EXCHANGER USING THE LYAPUNOV METHODS [PDF]

open access: yesJournal of Mechanics of Continua and Mathematical Sciences
The dynamic of the heat transfer analysis constitutes an important factor that has drawn the attention of many researchers. Heat transfer is evaluated by considering the heat transfer coefficient, the surface area, and the temperature difference between ...
Fadayini O.   +5 more
doaj   +1 more source

Parallel distributed compensation scheme for chaotic masking system via Rivest cipher 4 stream cipher

open access: yesIET Control Theory & Applications, 2023
This study presents a design methodology for Takagi‐Sugeno (T‐S) fuzzy models‐based secure communications in multiple time‐delay chaotic (MTDC) systems with Rivest cipher 4 (RC4) algorithm.
Feng‐Hsiag Hsiao
doaj   +1 more source

A discrete epidemic model for bovine Babesiosis disease and tick populations

open access: yesOpen Physics, 2017
In this paper, we provide and study a discrete model for the transmission of Babesiosis disease in bovine and tick populations. This model supposes a discretization of the continuous-time model developed by us previously.
Aranda Diego F.   +2 more
doaj   +1 more source

Enabling cyber-physical demand response in smart grids via conjoint communication and controller design

open access: yesIET Cyber-Physical Systems, 2019
This study proposes a novel user-centric cyber-physical framework to achieve distributed demand response (DDR) in a distribution system where local schedulers (LS) present at individual buses program both local and non-local loads to reduce the maximum ...
Swaroop Ranjan Mishra   +3 more
doaj   +1 more source

Low-Thrust Lyapunov to Lyapunov and Halo to Halo with $L^2$-Minimization [PDF]

open access: yes, 2016
In this work, we develop a new method to design energy minimum low-thrust missions (L2-minimization). In the Circular Restricted Three Body Problem, the knowledge of invariant manifolds helps us initialize an indirect method solving a transfer mission ...
Chupin, Maxime   +2 more
core   +7 more sources

DNN identification and fault-tolerant control for non-linear systems with unknown faults

open access: yesThe Journal of Engineering, 2019
In this study, dynamical neural networks (DNNs) are used as an online identifier for a class of non-linear systems with unknown actuator faults. By integrating the designed non-linear FD observer with adaptive regulation algorithm, the parameter coupling
Xiaoli Zhang   +3 more
doaj   +1 more source

Computation and verification of Lyapunov functions [PDF]

open access: yes, 2015
Lyapunov functions are an important tool to determine the basin of attraction of equilibria in Dynamical Systems through their sublevel sets. Recently, several numerical construction methods for Lyapunov functions have been proposed, among them the RBF ...
Dellnitz M.   +6 more
core   +1 more source

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