Results 11 to 20 of about 1,450,703 (382)

$\Psi$-bounded solutions for a Lyapunov matrix differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
It is proved a necessary and sufficient condition for the existence of at least one $\Psi$-bounded solution of a linear nonhomogeneous Lyapunov matrix differential equation.
Aurel Diamandescu
doaj   +2 more sources

Perturbation analysis of a matrix differential equation $\dot x=ABx$ [PDF]

open access: yesApplied Mathematics and Nonlinear Sciences, 2018
Two complex matrix pairs $(A,B)$ and $(A',B')$ are contragrediently equivalent if there are nonsingular $S$ and $R$ such that $(A',B')=(S^{-1}AR,R^{-1}BS)$. M.I. Garc\'{\i}a-Planas and V.V.
Garcìa-Planas, M. Isabel   +1 more
core   +2 more sources

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   +2 more sources

Prime decomposition of quadratic matrix polynomials

open access: yesAIMS Mathematics, 2021
We study the prime decomposition of a quadratic monic matrix polynomial. From the prime decomposition of a quadratic matrix polynomial, we obtain a formula of the general solution to the corresponding second-order differential equation.
Yunbo Tian, Sheng Chen
doaj   +1 more source

Approximate solution of linear integral equations by Taylor ordering method: Applied mathematical approach

open access: yesOpen Physics, 2022
Since obtaining an analytic solution to some mathematical and physical problems is often very difficult, academics in recent years have focused their efforts on treating these problems using numerical methods.
Ghamkhar Madiha   +8 more
doaj   +1 more source

Oscillation of Superlinear Matrix Differential Equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1989
The main purpose of this paper is to extend to matrix differential equations the classic theorem of \textit{F. V. Atkinson} [Pac. J. Math. 5, 643-647 (1955; Zbl 0065.320)], that a necessary and sufficient condition for the solutions of \(y''=f(t)y^{2n+1}\) to be oscillatory is that \(\int^{\infty}_{0}tf(t)dt=\infty\).
Ahlbrandt, Calvin D.   +2 more
openaire   +2 more sources

Green's Matrix for a Second Order Self-Adjoint Matrix Differential Operator [PDF]

open access: yes, 2009
A systematic construction of the Green's matrix for a second order, self-adjoint matrix differential operator from the linearly independent solutions of the corresponding homogeneous differential equation set is carried out.
Bayram Tekin   +12 more
core   +2 more sources

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

Nonlinear Eigenvalue Approach to Differential Riccati Equations for Contraction Analysis [PDF]

open access: yes, 2016
In this paper, we extend the eigenvalue method of the algebraic Riccati equation to the differential Riccati equation (DRE) in contraction analysis. One of the main results is showing that solutions to the DRE can be expressed as functions of nonlinear ...
Kawano, Yu, Ohtsuka, Toshiyuki
core   +3 more sources

Lax matrix solution of c=1 Conformal Field Theory [PDF]

open access: yes, 2014
To a correlation function in a two-dimensional conformal field theory with the central charge $c=1$, we associate a matrix differential equation $\Psi' = L \Psi$, where the Lax matrix $L$ is a matrix square root of the energy-momentum tensor.
Eynard, Bertrand, Ribault, Sylvain
core   +5 more sources

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