Results 21 to 30 of about 1,655,330 (212)

On the Computation of the Eigenvalues of a Tridiagonal Matrix [PDF]

open access: yesMathematics of Computation, 1969
A recent algorithm for the simultaneous approximation of all zeros of a polynomial is applied to the computation of the eigenvalues of a tridiagonal matrix. The method works in the presence of multiplicity and degeneracy and has been tested in a multitude of cases ; its practical limitation on a computer is the large number of locations required for ...
openaire   +2 more sources

A deflation formula for tridiagonal matrices [PDF]

open access: yes, 1980
summary:An explicit formula for the deflation of a tridiagonal matrix is presented.
Fiedler, Miroslav
core   +1 more source

The interesting spectral interlacing property for a certain tridiagonal matrix [PDF]

open access: yes, 2020
In this paper, a new tridiagonal matrix, whose eigenvalues are the same as the Sylvester-Kac matrix of the same order, is provided. The interest of this matrix relies also in that the spectrum of a principal submatrix is also of a Sylvester-Kac matrix ...
Kılıç, Emrah   +2 more
core   +1 more source

State-Space Parametrizations of Multivariable Linear Systems using Tridiagonal Matrix Forms

open access: yes, 1996
Tridiagonal parametrizations of linear state-space models are proposed for multivariable system identification. The parametrizations are surjective, i.e. all systems up to a given order can be described.
Helmersson, Anders,, McKelvey, Tomas,
core   +5 more sources

Computing the eigenvalues and eigenvectors of a general matrix by reduction to general tridiagonal form [PDF]

open access: yes, 1990
This paper describes programs to reduce a nonsymmetric matrix to tridiagonal form, compute the eigenvalues of the tridiagonal matrix, improve the accuracy of an eigenvalue, and compute the corresponding eigenvector.
Geist, G. A.   +2 more
core   +1 more source

A new approach to tridiagonal matrices related to the Sylvester–Kac matrix [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
The Sylvester–Kac matrix, a well-known tridiagonal matrix, has been extensively studied for over a century, with various generalizations explored in the literature.
Efruz Özlem Mersin, Mustafa Bahşi
doaj   +1 more source

VanderLaan Circulant Type Matrices

open access: yesAbstract and Applied Analysis, 2015
Circulant matrices have become a satisfactory tools in control methods for modern complex systems. In the paper, VanderLaan circulant type matrices are presented, which include VanderLaan circulant, left circulant, and g-circulant matrices.
Hongyan Pan, Zhaolin Jiang
doaj   +1 more source

Explicit inverse of a tridiagonal k−Toeplitz matrix [PDF]

open access: yesNumerische Mathematik, 2005
The paper presents explicit expressions for the entries of the inverse of a tridiagonal \(k\)-Toeplitz matrix \(A\). Conditions for the existence of \(A^{-1}\) are obtained from an explicit expression of the characteristic polynomial of \(A\). The results presented in the paper extend known results for the case when the residue \(\operatorname {mod} k\)
Fonseca, C. M. da, Petronilho, J.
openaire   +2 more sources

ANALYTICAL INVERSE FOR THE SYMMETRIC CIRCULANT TRIDIAGONAL MATRIX [PDF]

open access: yesFar East Journal of Applied Mathematics, 2018
Finding the inverse of a matrix is an open problem especially when it comes to engineering problems due to their complexity and running time (cost) of matrix inversion algorithms. An optimum strategy to invert a matrix is, first, to reduce the matrix to a simple form, only then beginning a mathematical procedure.
Seyyed Mostafa Mousavi Janbeh Sarayi   +3 more
openaire   +4 more sources

Remark on the eigenvalues of a tridiagonal matrix in biogeography

open access: yesApplied Mathematics and Computation, 2023
The main result proved in [The eigenvalues of a tridiagonal matrix in biogeography, Appl. Math. Comput. 218 (2011) 195-201; MR2821464] by B. Igelnik and D. Simon is virtually the Sylvester determinant.
openaire   +4 more sources

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