Results 231 to 240 of about 2,423 (258)
Some of the next articles are maybe not open access.

A note on quaternion matrices and split quaternion matrix pencils

Journal of Applied Mathematics and Computing, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Quaternion matrix and the re-nonnegative definite solutions to the quaternion matrix inverse problem \(AX=B\)

Mathematical Journal of Okayama University, 1997
If \(H^{m\times n}\) denotes the set of all \(m\times n\) matrices over the quaternion field \( H\), a matrix \(A,A\in H^{m\times n},\) is \text{Re}-nonnegative definite if \(\text{Re}\to(X^{\ast }AX)\geqslant 0\) holds for every \(X\in H^{m\times 1}\), where \(X^{\ast }\)\ denotes the conjugate transpose of \(X\). The author finds the set of all \text{
openaire   +3 more sources

L-structured quaternion matrices and quaternion linear matrix equations

Linear and Multilinear Algebra, 2015
This paper focuses on L-structured quaternion matrices. L-structured real matrices, conditions for the existence of solutions and the general solution of linear matrix equations were studied in the paper [Magnus JR. L-structured matrices and linear matrix equations, Linear Multilinear Algebra 1983;14:67–88].
Shi-Fang Yuan, Qing-Wen Wang
openaire   +1 more source

A Matrix Defined by the Quaternion Group

The American Mathematical Monthly, 1902
(1902). A Matrix Defined by the Quaternion Group. The American Mathematical Monthly: Vol. 9, No. 11, pp. 243-248.
openaire   +1 more source

Solvability of a quaternion matrix equation

Applied Mathematics-A Journal of Chinese Universities, 2002
The author studies the solvability of the matrix equations \((*)\) \(AXB=D\) and \((**)\) \(A^*X^*B^*\pm BXA=D\) where \(A\), \(B\), \(D\) are quaternion matrices. He gives necessary and sufficient conditions for the solvability of \((*)\) (resp. of \((**)\)) in Hermitian and in skew-Hermitian matrices (resp.
openaire   +1 more source

Finite quaternionic matrix groups

Representation Theory, 1998
Let D \mathcal {D} be a definite quaternion algebra such that its ...
openaire   +1 more source

Algebraic methods for diagonalization of a quaternion matrix in quaternionic quantum theory

Journal of Mathematical Physics, 2005
By means of complex representation and real representation of a quaternion matrix, this paper studies the problem of diagonalization of a quaternion matrix, gives two algebraic methods for diagonalization of quaternion matrices in quaternionic quantum theory.
openaire   +2 more sources

Color Image Recovery Using Low-Rank Quaternion Matrix Completion Algorithm

IEEE Transactions on Image Processing, 2022
Jifei Miao, Kit Ian Kou
exaly  

Matrix Representation of Dual Quaternions

2013
After a review of some properties of dual quaternions, De Moivre's and Euler's formulas for the matrices associated with these quaternions are studied. In special case, De Moivre's formula implies that there are uncountably many matrices of unit dual quaternions satisfying 4 n A I = for n≥3.
JAFARI, Mehdi   +2 more
openaire   +1 more source

Quaternion-Based Bilinear Factor Matrix Norm Minimization for Color Image Inpainting

IEEE Transactions on Signal Processing, 2020
Jifei Miao, Kit Ian Kou
exaly  

Home - About - Disclaimer - Privacy