Results 21 to 30 of about 175,846,736 (289)

Convergence of block iterative methods for linear systems arising in the numerical solution of Euler equations [PDF]

open access: yes, 1991
Elsner L, Mehrmann V. Convergence of block iterative methods for linear systems arising in the numerical solution of Euler equations. Numerische Mathematik.
Mehrmann, Volker, Elsner, Ludwig
core   +1 more source

Pseudospectra and stability radii of analytic matrix functions with application to time-delay systems [PDF]

open access: yes, 2005
Definitions for pseudospectra and stability radii of an analytic matrix function are given, where the structure of the function is exploited. Various perturbation measures are considered and computationally tractable formulae are derived. The results are
Green, K   +8 more
core   +1 more source

Canonical transformations of linear Hamiltonian systems [PDF]

open access: yesE3S Web of Conferences
In this paper we consider the linear Hamiltonian systems of differential equations. We explore the normalization of a non-singular Hamiltonian matrix. We solve a system of matrix equations to find the generating function of the canonical transformation ...
Titova Tatiana
doaj   +1 more source

Matrix Diophantine equations over quadratic rings and their solutions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
The method for solving the matrix Diophantine equations over quadratic rings is developed. On the basic of the standard form of matrices over quadratic rings with respect to $(z,k)$-equivalence previously established by the authors, the matrix ...
N.B. Ladzoryshyn   +2 more
doaj   +1 more source

A New Analytic Solution Method for a Class of Generalized Riccati Differential Equations

open access: yesUniversal Journal of Mathematics and Applications, 2023
We give a useful and practicable solution method for the general Riccati differential equation of the form $w^{\prime }\left( x\right) =p\left( x\right) +q\left( x\right) w\left( x\right) +r\left( x\right) w^{2}\left( x\right) $.
Adil Mısır
doaj   +1 more source

Solving ill-conditioned linear equations using simulated annealing method [PDF]

open access: yesJournal of Hyperstructures, 2018
The purpose of this paper is to using the Simulated Annealing method to solving a linear equations system which have an ill-conditioned coefficients matrix. A linear equation system is called ill-conditioned if its condition number be large.
Mojtaba Moradi
doaj   +1 more source

Numerics of boundary-domain integral and integro-differential equations for BVP with variable coefficient in 3D [PDF]

open access: yes, 2013
This is the post-print version of the article. The official published version can be accessed from the links below - Copyright @ 2013 Springer-VerlagA numerical implementation of the direct boundary-domain integral and integro-differential equations ...
Mikhailov, SE   +2 more
core   +1 more source

The Reflexive and Anti-Reflexive Solutions of a Linear Matrix Equation and Systems of Matrix Equations

open access: yesRocky Mountain Journal of Mathematics, 2010
By using appropriate matrix decompositions, necessary and sufficient solvability conditions and explicit reflexive and anti-reflexive solutions for the following matrix equation: {\parindent9mm \begin{itemize}\item[(I)] \(A_1 XB_1 = D_1\), and systems of matrix equations: \item[(II)] \(A_1 X = C_1, XB_2 = C_2\), and \item[(III)] \(A_1 X = C_1, XB_2 ...
Dehghan, Mehdi, Hajarian, Masoud
openaire   +3 more sources

The solution of the full matrix analogue of the generalized abel equation with constant coefficients

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
The system of generalized integral Abel equations in the matrix form with constant coefficients on the segment. Was considered at the terms of the integral Riemann-Liouville operators of matrix order.
Rina R Ismagilova
doaj   +3 more sources

On the Iterative Method for the System of Nonlinear Matrix Equations [PDF]

open access: yesAbstract and Applied Analysis, 2013
Summary: The positive definite solutions for the system of nonlinear matrix equations \(X + A^\ast Y^{-n} A = I\), \(Y + B^\ast X^{-m} B = I\) are considered, where \(n\), \(m\) are two positive integers and \(A\), \(B\) are nonsingular complex matrices.
openaire   +3 more sources

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