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On the Positive Definite Solutions of a Nonlinear Matrix Equation [PDF]

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   +3 more sources

Notes on the Hermitian Positive Definite Solutions of a Matrix Equation [PDF]

open access: yesJournal of Applied Mathematics, 2014
The nonlinear matrix equation, X-∑i=1mAi*XδiAi=Q, with -1 ...
Jing Li, Yuhai Zhang
doaj   +4 more sources

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.
Ming Hui Wang   +2 more
openaire   +2 more sources

Hermitian metrics with (anti-)self-dual Riemann tensor [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
Equations of (anti-)self-duality for the components of the LeviCivita connection of the Hermitian positive definite metric (not for the Riemann tensor) are compiled.
Leonid Krivonosov, Vyacheslav Luk'yanov
doaj   +1 more source

Asymptotic behavior of solutions of fully nonlinear equations over exterior domains

open access: yesComptes Rendus. Mathématique, 2021
In this paper, we consider the asymptotic behavior at infinity of solutions of a class of fully nonlinear elliptic equations $F(D^2u)=f(x)$ over exterior domains, where the Hessian matrix $(D^2u)$ tends to some symmetric positive definite matrix at ...
Jia, Xiaobiao
doaj   +1 more source

Investigation of the existence and uniqueness of extremal and positive definite solutions of nonlinear matrix equations

open access: yesJournal of Inequalities and Applications, 2016
We consider two nonlinear matrix equations X r ± ∑ i = 1 m A i ∗ X δ i A i = I $X^{r} \pm \sum_{i = 1}^{m} A_{i}^{*}X^{\delta_{i}}A_{i} = I$ , where − 1 < δ i < 0 $- 1 < \delta_{i} < 0$ , and r, m are positive integers. For the first equation (plus case),
Abdel-Shakoor M Sarhan   +1 more
doaj   +1 more source

On strong solutions for positive definite jump diffusions

open access: yesStochastic Processes and their Applications, 2011
version to appear in Stochastic Processes and Their Applications ...
Mayerhofer, Eberhard   +2 more
openaire   +2 more sources

Approximating Solutions of Matrix Equations via Fixed Point Techniques

open access: yesMathematics, 2021
The principal goal of this work is to investigate new sufficient conditions for the existence and convergence of positive definite solutions to certain classes of matrix equations.
Rahul Shukla   +3 more
doaj   +1 more source

Positive Definite Solutions of the Matrix Equation Xr-∑i=1mAi∗X-δiAi=I

open access: yesAbstract and Applied Analysis, 2015
We investigate the nonlinear matrix equation Xr-∑i=1mAi∗X-δiAi=I, where r is a positive integer and δi∈(0,1], for i=1,2,…,m. We establish necessary and sufficient conditions for the existence of positive definite solutions of this equation.
Asmaa M. Al-Dubiban
doaj   +1 more source

Iterative Algorithm for Solving a System of Nonlinear Matrix Equations

open access: yesJournal of Applied Mathematics, 2012
We discuss the positive definite solutions for the system of nonlinear matrix equations and , where , are two positive integers. Some properties of solutions are studied, and the necessary and sufficient conditions for the existence of positive ...
Asmaa M. Al-Dubiban
doaj   +1 more source

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