Results 21 to 30 of about 649,071 (268)

On Orthogonal Polynomials With Respect to a Positive Definite Matrix of Measures [PDF]

open access: bronzeCanadian Journal of Mathematics - Journal Canadien de Mathematiques, 1995
Antonio J. Durán
openalex   +2 more sources

ON CAUCHY-TYPE BOUNDS FOR THE EIGENVALUES OF A SPECIAL CLASS OF MATRIX POLYNOMIALS

open access: yesUral Mathematical Journal, 2023
Let \(\mathbb{C}^{m\times m}\) be the set of all \(m\times m\) matrices whose  entries are in \(\mathbb{C},\) the set of complex numbers. Then \(P(z):=\sum\limits_{j=0}^nA_jz^j,\) \(A_j\in \mathbb{C}^{m\times m},\) \(0\leq j\leq n\) is called a matrix ...
Zahid Bashir Monga, Wali Mohammad Shah
doaj   +1 more source

On the nonlinear matrix equation $ X^{s}+A^{H}F(X)A = Q $

open access: yesAIMS Mathematics, 2023
Nonlinear matrix equation often arises in control theory, statistics, dynamic programming, ladder networks, and so on, so it has widely applied background.
Yajun Xie, Changfeng Ma, Qingqing Zheng
doaj   +1 more source

A Non-Iterative Method for the Difference of Means on the Lie Group of Symmetric Positive-Definite Matrices

open access: yesMathematics, 2022
A non-iterative method for the difference of means is presented to calculate the log-Euclidean distance between a symmetric positive-definite matrix and the mean matrix on the Lie group of symmetric positive-definite matrices.
Xiaomin Duan   +3 more
doaj   +1 more source

Positive Definite Solutions of the Nonlinear Matrix Equation $X+A^{\mathrm{H}}\bar{X}^{-1}A=I$ [PDF]

open access: yes, 2012
This paper is concerned with the positive definite solutions to the matrix equation $X+A^{\mathrm{H}}\bar{X}^{-1}A=I$ where $X$ is the unknown and $A$ is a given complex matrix.
Cai, Guang-Bin, Lam, James, Zhou, Bin
core   +2 more sources

Fundamental Solution of Elliptic Equation with Positive Definite Matrix Coefficient

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2018
In this paper, we study the fundamental solution of elliptic equations with real constant coefficients   where is a positive definite matrix. We obtained by searching the radial solution so that we solved the equation into ordinary differential equations.
Khoirunisa Khoirunisa, Corina Karim
doaj   +1 more source

Transversely Hessian foliations and information geometry [PDF]

open access: yes, 2015
A family of probability distributions parametrized by an open domain $\Lambda$ in $R^n$ defines the Fisher information matrix on this domain which is positive semi-definite.
Boyom, Michel Nguiffo, Wolak, Robert A.
core   +1 more source

A note on fixed point method and linear complementarity problem

open access: yesJournal of Numerical Analysis and Approximation Theory, 2023
In this article, we present a general form of the fixed point method for processing the large and sparse linear complementarity problem, as well as a general condition for the method's convergence when the system matrix is a \(P\)-matrix and some ...
Bharat Kumar, Deepmala, Arup K Das
doaj   +1 more source

On the matrix function $_pR_q(A, B; z)$ and its fractional calculus properties [PDF]

open access: yesCommunications in Mathematics, Volume 31 (2023), Issue 1 (November 4, 2022) cm:10205, 2022
The main objective of the present paper is to introduce and study the function $_pR_q(A, B; z)$ with matrix parameters and investigate the convergence of this matrix function. The contiguous matrix function relations, differential formulas and the integral representation for the matrix function $_pR_q(A, B; z)$ are derived.
arxiv   +1 more source

On the positive definite solutions of a nonlinear matrix equation [PDF]

open access: yes2012 4th Electronic System-Integration Technology Conference, 2012
In this paper, the nonlinear matrix equation is investigated. Based on the fixed-point theory, the boundary and the existence of the solution with the case are discussed. An algorithm that avoids matrix inversion with the case is proposed.
Chun Yan Liang   +2 more
openaire   +3 more sources

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