Results 11 to 20 of about 374,863 (314)

A New Solution to the Matrix Equation X−AX¯B=C [PDF]

open access: yesThe Scientific World Journal, 2014
We investigate the matrix equation X−AX¯B=C. For convenience, the matrix equation X−AX¯B=C is named as Kalman-Yakubovich-conjugate matrix equation. The explicit solution is constructed when the above matrix equation has unique solution. And this solution
Caiqin Song
doaj   +2 more sources

On A Matrix Hypergeometric Differential Equation

open access: diamondمجلة العلوم البحتة والتطبيقية, 2021
In this paper we consider a matrix Hypergeometric differential equation, which are special matrix functions and solution of a specific second order linear differential equation.
Salah Hamd   +2 more
doaj   +3 more sources

The common Re-nonnegative definite and Re-positive definite solutions to the matrix equations $ A_1XA_1^\ast = C_1 $ and $ A_2XA_2^\ast = C_2 $

open access: yesAIMS Mathematics, 2022
In this paper, we consider the common Re-nonnegative definite (Re-nnd) and Re-positive definite (Re-pd) solutions to a pair of linear matrix equations $ A_1XA_1^\ast = C_1, \ A_2XA_2^\ast = C_2 $ and present some necessary and sufficient conditions for ...
Yinlan Chen, Lina Liu
doaj   +1 more source

On spectral numerical method for variable-order partial differential equations

open access: yesAIMS Mathematics, 2022
In this research article, we develop a powerful algorithm for numerical solutions to variable-order partial differential equations (PDEs). For the said method, we utilize properties of shifted Legendre polynomials to establish some operational matrices ...
Kamal Shah   +3 more
doaj   +1 more source

Minimal Rank Properties of Outer Inverses with Prescribed Range and Null Space

open access: yesMathematics, 2023
The purpose of this paper is to investigate solvability of systems of constrained matrix equations in the form of constrained minimization problems.
Dijana Mosić   +2 more
doaj   +1 more source

On the Convergence of the Randomized Block Kaczmarz Algorithm for Solving a Matrix Equation

open access: yesMathematics, 2023
A randomized block Kaczmarz method and a randomized extended block Kaczmarz method are proposed for solving the matrix equation AXB=C, where the matrices A and B may be full-rank or rank-deficient.
Lili Xing, Wendi Bao, Weiguo Li
doaj   +1 more source

Three special kinds of least squares solutions for the quaternion generalized Sylvester matrix equation

open access: yesAIMS Mathematics, 2022
In this paper, we propose an efficient method for some special solutions of the quaternion matrix equation AXB+CYD=E. By integrating real representation of a quaternion matrix with H-representation, we investigate the minimal norm least squares solution ...
Anli Wei   +3 more
doaj   +1 more source

Analytic solution for the lightning current induced mutually coupled resistive filament wire model

open access: yesAIMS Mathematics, 2023
When a lightning current flows between the lightning entry and exit points of a structure, the lightning current density varies in different parts of the structure depending on the shape of the structure and material variance.
Joonwoo Park, Raechoong Kang
doaj   +1 more source

θ*-Weak Contractions and Discontinuity at the Fixed Point with Applications to Matrix and Integral Equations

open access: yesAxioms, 2021
In this paper, the notion of θ*-weak contraction is introduced, which is utilized to prove some fixed point results. These results are helpful to give a positive response to certain open question raised by Kannan and Rhoades on the existence of ...
Atiya Perveen   +3 more
doaj   +1 more source

A unified treatment for the restricted solutions of the matrix equation $AXB=C$

open access: yesAIMS Mathematics, 2020
In this paper, the Hermitian, skew-Hermitian, Re-nonnegative definite, Re-positive definite, Re-nonnegative definite least-rank and Re-positive definite least-rank solutions of the matrix equation $AXB= C$ are considered.
Jiao Xu   +4 more
doaj   +1 more source

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