Results 1 to 10 of about 615,027 (289)

Perturbation Analysis of the Nonlinear Matrix Equation [PDF]

open access: yesAbstract and Applied Analysis, 2013
Consider the nonlinear matrix equation with . Two perturbation bounds and the backward error of an approximate solution to the equation are derived. Explicit expressions of the condition number for the equation are obtained.
Jing Li
doaj   +2 more sources

Comment on “Perturbation Analysis of the Nonlinear Matrix Equation ” [PDF]

open access: yesAbstract and Applied Analysis, 2013
We show that the perturbation estimate for the matrix equation due to J. Li, is wrong. Our discussion is supported by a counterexample.
Maher Berzig, Erdal Karapınar
doaj   +2 more sources

On $\Psi$-stability of nonlinear Lyapunov matrix differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
We prove necessary and sufficient conditions for $\Psi -$ (uniform) stability of the trivial solution of a nonlinear Lyapunov matrix differential equation.
Aurel Diamandescu
doaj   +3 more sources

Nonlinear dynamics of open quantum systems

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
The evolution of a composite closed system using the integral wave equation with the kernel in the form of path integral is considered. It is supposed that a quantum particle is a subsystem of this system.
Alexey Yu Samarin
doaj   +3 more sources

On the Propagation Model of Two-Component Nonlinear Optical Waves

open access: yesAxioms, 2023
Currently, two-component integrable nonlinear equations from the hierarchies of the vector nonlinear Schrodinger equation and the vector derivative nonlinear Schrödinger equation are being actively investigated.
Aleksandr O. Smirnov, Eugeni A. Frolov
doaj   +1 more source

Numerical differential continuation approach for systems of nonlinear equations with singular Jacobian [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
It is well known that, one of the useful and rapid methods for a nonlinear system of algebraic equations is Newton’s method. Newton’s method has at least quadratic convergence when the Jacobian is a nonsingular matrix in a neighborhood of the solution ...
Mohammad Ali Mehrpouya
doaj   +1 more source

Integration of the Matrix Nonlinear Schr¨odinger Equation with a Source

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2021
This paper is concerned with studying the matrix nonlinear Schr¨odinger equation with a self-consistent source. The source consists of the combination of the eigenfunctions of the corresponding spectral problem for the matrix Zakharov-Shabat system which
G.U. Urazboev   +2 more
doaj   +1 more source

Best approximation of a nonlinear fractional Volterra integro-differential equation in matrix MB-space

open access: yesAdvances in Difference Equations, 2021
In this article, we introduce a class of stochastic matrix control functions to stabilize a nonlinear fractional Volterra integro-differential equation with Ψ-Hilfer fractional derivative.
Reza Chaharpashlou, Reza Saadati
doaj   +1 more source

Barycentric Rational Collocation Method for Nonlinear Heat Conduction Equation

open access: yesJournal of Applied Mathematics, 2022
Nonlinear heat equation solved by the barycentric rational collocation method (BRCM) is presented. Direct linearization method and Newton linearization method are presented to transform the nonlinear heat conduction equation into linear equations.
Jin Li
doaj   +1 more source

Explicit inverse of near Toeplitz pentadiagonal matrices related to higher order difference operators

open access: yesResults in Applied Mathematics, 2021
This paper analyzes the inverse of near Toeplitz pentadiagonal matrices, arising from a finite-difference approximation to the fourth-order nonlinear beam equation.
Bakytzhan Kurmanbek   +2 more
doaj   +1 more source

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