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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

PENTAGON EQUATION AND MATRIX BIALGEBRAS [PDF]

open access: yesCommunications in Algebra, 2001
We classify coproducts on matrix algebra in terms of solutions to some modification of pentagon equation. The construction of Baaj and Skandalis describing finite dimensional unitary solutions of pentagon equation is extended to the non-unitary case. We establish the relation between Hopf-Galois algebras and solutions to modified pentagon equation.
Davydov, A.
openaire   +4 more sources

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

Shifted Jacobi collocation scheme for multidimensional time-fractional order telegraph equation [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2020
We propose a numerical scheme to solve a general class of time-fractional order telegraph equation in multidimensions using collocation points nodes and approximating the solution using double shifted Jacobi polynomials.
R.M. Hafez, Y.H. Youssri
doaj   +1 more source

Convex (α, β)-Generalized Contraction and Its Applications in Matrix Equations

open access: yesAxioms, 2023
This paper investigates the existence and convergence of solutions for linear and nonlinear matrix equations. This study explores the potential of convex (α,β)-generalized contraction mappings in geodesic spaces, ensuring the existence of solutions for ...
Rahul Shukla, Winter Sinkala
doaj   +1 more source

Invariance property of a five matrix product involving two generalized inverses

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
Matrix expressions composed by generalized inverses can generally be written as f(A−1, A−2, . . ., A−k), where A1, A2, . . ., Ak are a family of given matrices of appropriate sizes, and (·)− denotes a generalized inverse of matrix.
Jiang Bo, Tian Yongge
doaj   +1 more source

A Sylvester-Type Matrix Equation over the Hamilton Quaternions with an Application

open access: yesMathematics, 2022
We derive the solvability conditions and a formula of a general solution to a Sylvester-type matrix equation over Hamilton quaternions. As an application, we investigate the necessary and sufficient conditions for the solvability of the quaternion matrix
Long-Sheng Liu   +2 more
doaj   +1 more source

Algebraic Characterizations of Relationships between Different Linear Matrix Functions

open access: yesMathematics, 2023
Let f(X1,X2,…,Xk) be a matrix function over the field of complex numbers, where X1,X2,…,Xk are a family of matrices with variable entries. The purpose of this paper is to propose and investigate the relationships between certain linear matrix functions ...
Yongge Tian, Ruixia Yuan
doaj   +1 more source

Equivalent resistance of irregular 3 × n Hammock resistor network

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2022
The equivalent resistance of a kind of irregular 3 × n Hammock resistor network is studied by the RT-I theory, in which the third order matrix equation and the third order boundary condition equation are established by Kirchhoff′s law and the branch ...
TAN Zhizhong
doaj   +1 more source

A new approximate inverse preconditioner based on the Vaidya’s maximum spanning tree for matrix equation AXB = C [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2019
We propose a new preconditioned global conjugate gradient (PGL-CG) method for the solution of matrix equation AXB = C, where A and B are sparse Stieltjes matrices. The preconditioner is based on the support graph preconditioners.
K. Rezaei, F. Rahbarnia, F. Toutounian
doaj   +1 more source

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