Results 21 to 30 of about 564,115 (361)

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

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

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

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

Riemannian Optimal Identification Method for Linear Systems With Symmetric Positive-Definite Matrix

open access: yesIEEE Transactions on Automatic Control, 2018
This article develops identification methods for linear continuous-time symmetric systems, such as electrical network systems, multiagent network systems, and temperature dynamics in buildings.
Kazuhiro Sato, Hiroyuki Sato, T. Damm
semanticscholar   +1 more source

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

Some trace inequalities for matrix means

open access: yesJournal of Inequalities and Applications, 2016
In this short note, we present some trace inequalities for matrix means. Our results are generalizations of the ones shown by Bhatia, Lim, and Yamazaki.
Limin Zou, Yang Peng
doaj   +1 more source

On the Positive Definite Solutions of a Nonlinear Matrix Equation

open access: yesJournal of Applied Mathematics, 2013
The positive definite solutions of the nonlinear matrix equation are discussed. A necessary and sufficient condition for the existence of positive definite solutions for this equation is derived.
Panpan Liu, Shugong Zhang, Qingchun Li
doaj   +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 mixed discriminants of positively definite matrix

open access: yesArs Mathematica Contemporanea, 2015
In the paper, some new inequalities for the mixed discriminants of positively definite matrix are established, which are the matrix analogues of inequalities of the well-known mixed volumes function.
Li, Xiao-Yan, Zhao, Chang-Jian
openaire   +3 more sources

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