Results 11 to 20 of about 1,429,804 (373)

More on Asymptotic Approximation for Matrix Differential Equations

open access: bronzeJournal of Mathematical Analysis and Applications, 1999
By means of WKB-methods, an asymptotic approximation is obtained for the solution of \(Y''=t^hA(t)Y\), where \(h\) is a real number, and \(A(t)\) a Hermitean \(n\times n\)-matrix for real \(t\), which is analytic and invertible on \((a,\infty]\). The eigenvalues \(\lambda_j\) of \(t^hA\) shall satisfy \(1+(\lambda_j')^2/(16\lambda_j^3)\neq 0\) on \((a,\
Uri Elias, Harry Gingold
openalex   +3 more sources

A Jacobi operational matrix for solving a fuzzy linear fractional differential equation [PDF]

open access: gold, 2013
This paper reveals a computational method based using a tau method with Jacobi polynomials for the solution of fuzzy linear fractional differential equations of order ...
Ali Ahmadian   +3 more
openalex   +2 more sources

Accessibility of the matrix Riccati differential equation [PDF]

open access: bronzePAMM, 2007
AbstractA known result on the classification of transitive Lie group actions on complex Grassmann manifolds is exploited to derive a necessary and sufficient accessibility criterion for the complex matrix differential Riccati equation. We treat both cases, the symmetric as well as the non‐symmetric Riccati equation.
Gunther Dirr, Uwe Helmke
openalex   +3 more sources

On matrix differential equations and abstract FG algorithm

open access: bronzeLinear Algebra and its Applications, 2002
The purpose of this paper is to show that a whole class of matrix differential equations has a connection with the abstract FG algorithm. All equations from this class are built by means of various representations \(\rho\) of an arbitrary Lie algebra \({\mathfrak g}\) on \(\mathbb{K}^{n\times n}\) in the following way: \[ \dot L=\rho_N(L) \] where \(L ...
Maria Przybylska
openalex   +4 more sources

Novel Bäcklund Transformations for Integrable Equations

open access: yesMathematics, 2022
In this paper, we construct a new matrix partial differential equation having a structure and properties which mirror those of a matrix fourth Painlevé equation recently derived by the current authors.
Pilar Ruiz Gordoa, Andrew Pickering
doaj   +1 more source

A computational solution for a Matrix Riccati differential equation

open access: yesNumerische Mathematik, 1979
This paper is concerned with the solution of the finite time Riccati equation. The solution to the Riccati equation is given in terms of the partition of the transition matrix. Matrix differential equations for the partition of the transition matrix are derived and are solved using computational methods.
M. Razzaghi
openaire   +3 more sources

Optical solitary wave solutions in generalized determinant form for Kundu–Eckhaus equation

open access: yesResults in Physics, 2023
The Kundu–Eckhaus (KE) equation describes the propagation of ultra-short femtosecond pulses in optical fibers. In this paper, on the basis of Hirota bilinear form of KE equation, a complex matrix is introduced into the differential relation satisfied by ...
Gui-Min Yue, Xiang-Hua Meng
doaj   +1 more source

Sensitivity of the Solution to Nonsymmetric Differential Matrix Riccati Equation

open access: yesMathematics, 2021
Nonsymmetric differential matrix Riccati equations arise in many problems related to science and engineering. This work is focusing on the sensitivity of the solution to perturbations in the matrix coefficients and the initial condition.
Vera Angelova   +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

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