Results 21 to 30 of about 3,735,457 (189)

Distilled neural state-dependent Riccati equation feedback controller for dynamic control of a cable-driven continuum robot

open access: yesInternational Journal of Advanced Robotic Systems, 2023
This article presents a novel learning-based optimal control approach for dynamic control of continuum robots. Working and interacting with a confined and unstructured environment, nonlinear coupling, and dynamic uncertainty are only some of the ...
Mohammadamin Samadi Khoshkho   +2 more
doaj   +1 more source

Oscillation and non-oscillation of half-linear differential equations with coeffcients determined by functions having mean values

open access: yesOpen Mathematics, 2018
The paper belongs to the qualitative theory of half-linear equations which are located between linear and non-linear equations and, at the same time, between ordinary and partial differential equations.
Hasil Petr, Veselý Michal
doaj   +1 more source

Modified Infinite-Time State-Dependent Riccati Equation Method for Nonlinear Affine Systems: Quadrotor Control

open access: yesApplied Sciences, 2021
This paper presents modeling and infinite-time suboptimal control of a quadcopter device using the state-dependent Riccati equation (SDRE) method. It establishes a solution to the control problem using SDRE and proposes a new procedure for solving the ...
Sławomir Stępień   +1 more
doaj   +1 more source

Wintner-type nonoscillation theorems for conformable linear Sturm-Liouville differential equations [PDF]

open access: yesOpuscula Mathematica
In this study, we addressed the nonoscillation of th Sturm-Liouville differential equation with a differential operator, which corresponds to a proportional-derivative controller. The equation is a conformable linear differential equation. A Wintner-type
Kazuki Ishibashi
doaj   +1 more source

A New Method for Riccati Differential Equations Based on Reproducing Kernel and Quasilinearization Methods

open access: yesAbstract and Applied Analysis, 2012
We introduce a new method for solving Riccati differential equations, which is based on reproducing kernel method and quasilinearization technique. The quasilinearization technique is used to reduce the Riccati differential equation to a sequence of ...
F. Z. Geng, X. M. Li
doaj   +1 more source

Local estimates for modified Riccati equation in theory of half-linear differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper we study the half-linear differential equation \begin{equation*} \bigl(r(t)\Phi_p(x')\bigr)'+c(t)\Phi_p(x)=0, \end{equation*} where $\Phi_p(x)=|x|^{p-2}x$, $p>1$. Using modified Riccati technique and suitable local estimates for terms
Simona Fišnarová, Robert Marik
doaj   +1 more source

Hermitian Solutions of the Quaternion Algebraic Riccati Equations through Zeroing Neural Networks with Application to Quadrotor Control

open access: yesMathematics, 2023
The stability of nonlinear systems in the control domain has been extensively studied using different versions of the algebraic Riccati equation (ARE). This leads to the focus of this work: the search for the time-varying quaternion ARE (TQARE) Hermitian
Houssem Jerbi   +6 more
doaj   +1 more source

Optimal integrated passive/active design of the suspension system using iteration on the Lyapunov equations [PDF]

open access: yesJournal of Theoretical and Applied Vibration and Acoustics, 2015
In this paper, an iterative technique is proposed to solve linear integrated active/passive design problems. The optimality of active and passive parts leads to the nonlinear algebraic Riccati equation due to the active parameters and some associated ...
Mahyar Naraghi, Mojtaba Moradi
doaj   +1 more source

Important Criteria for Asymptotic Properties of Nonlinear Differential Equations

open access: yesMathematics, 2021
In this article, we prove some new oscillation theorems for fourth-order differential equations. New oscillation results are established that complement related contributions to the subject.
Ahmed AlGhamdi   +2 more
doaj   +1 more source

A subspace shift technique for nonsymmetric algebraic Riccati equations associated with an M‐matrix [PDF]

open access: yesNumerical Linear Algebra with Applications, 2012
SUMMARYThe worst situation in computing the minimal nonnegative solution of a nonsymmetric algebraic Riccati equation associated with an M‐matrix occurs when the corresponding linearizing matrix has two very small eigenvalues, one with positive and one with negative real part.
Bruno Iannazzo   +1 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy