Results 31 to 40 of about 554,064 (360)

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

Symmetric multisplitting of a symmetric positive definite matrix

open access: yesLinear Algebra and its Applications, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhi-Hao Cao, Zhong-Yun Liu
openaire   +2 more sources

Sebuah Telaah Elips dan Lingkaran Melalui Sebuah Pendekatan Aljabar Matriks

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2010
In this article, ellipse and circle will be learnt in depth via matrix algebra approach. The discussion of the both is started from their classic definition continued by surveying ellipse in matrix form.
Rahmat Sagara
doaj   +1 more source

Use of suggested correlation matrix in factor analysis [PDF]

open access: yesمجلة التربية والعلم, 2010
some variables may have nominal or ordinal scale, this causes a failure of analyzing the Pearson's correlation matrix by factor analysis. However, it was suggested to replace the elements of the correlation matrix by correlation coefficients which should
Marwan AbdulAziz Dabdoub
doaj   +1 more source

Best Proximity Point and Existence of the Positive Definite Solution for Matrix Equations

open access: yesInternational Journal of Analysis and Applications, 2023
In this research, α − ψ − θ contraction has been defined to find the best proximity point in partially ordered metric spaces. Proper support for the result has been given in the form of a suitable example.
Satyendra Kumar Jain   +2 more
doaj   +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

On the inverse of a matrix with positive definite symmetric component

open access: yesLinear Algebra and its Applications, 1991
The inverse of the special real \(n\times n\)-matrix \(A+vB\) is investigated, where \(A\) is symmetric and positive definite, \(B\) is skew- symmetric, and \(v\) is a real parameter. An expression for the inverse \(Z(v)=(A+vB)^{-1}\) is derived as a sum of powers of the matrix \(H=A^{-1}B\), namely, \(Z(v)=[\sum^{m^*}_{k=0}g_ k(v)H^ k]A^{-1}\), where \
Giuseppe Buffoni, Enea Crea S. Teresa
openaire   +2 more sources

Not Positive Definite Correlation Matrices in Exploratory Item Factor Analysis: Causes, Consequences and a Proposed Solution

open access: yesStructural Equation Modeling: A Multidisciplinary Journal, 2021
Least-squares exploratory factor analysis based on tetrachoric/polychoric correlations is a robust, defensible and widely used approach for performing item analysis, especially in the first stages of scale development. A relatively common problem in this
U. Lorenzo-Seva, P. J. Ferrando
semanticscholar   +1 more source

Positive definite solution of two kinds of nonlinear matrix equations [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
Based on the elegant properties of the Thompson metric, we prove that the following two kinds of nonlinear matrix equations X=Σi=1m  Ai* XδiAi and X=Σi=1m (Ai* XAi)δi ...
Fujian Duan, Zhenyun Peng, Xuefeng Duan
doaj  

Evaluating functions of positive-definite matrices using colored noise thermostats [PDF]

open access: yes, 2014
Many applications in computational science require computing the elements of a function of a large matrix. A commonly used approach is based on the the evaluation of the eigenvalue decomposition, a task that, in general, involves a computing time that ...
Ceriotti, Michele   +3 more
core   +2 more sources

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