Results 11 to 20 of about 17,645 (222)

Orthogonal diagonalization for complex skew-persymmetric anti-tridiagonal Hankel matrices

open access: yesSpecial Matrices, 2016
In this paper, we obtain an eigenvalue decomposition for any complex skew-persymmetric anti-tridiagonal Hankel matrix where the eigenvector matrix is orthogonal.
Gutiérrez-Gutiérrez Jesús   +1 more
doaj   +3 more sources

Fine Spectra of Tridiagonal Symmetric Matrices [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
The fine spectra of upper and lower triangular banded matrices were examined by several authors. Here we determine the fine spectra of tridiagonal symmetric infinite matrices and also give the explicit form of the resolvent operator for the sequence ...
Muhammed Altun
doaj   +3 more sources

Parallel QR Factorization of Block-Tridiagonal Matrices [PDF]

open access: greenSIAM Journal on Scientific Computing, 2020
In this work, we deal with the QR factorization of block-tridiagonal matrices, where the blocks are dense and rectangular. This work is motivated by a novel method for computing geodesics over Riemannian man-ifolds. If blocks are reduced sequentially along the diagonal, only limited parallelism is available.
Alfredo Buttari   +2 more
openalex   +5 more sources

Tridiagonalizing random matrices

open access: yesPhysical Review D, 2023
The Hungarian physicist Eugene Wigner introduced random matrix models in physics to describe the energy spectra of atomic nuclei. As such, the main goal of random matrix theory (RMT) has been to derive the eigenvalue statistics of matrices drawn from a given distribution.
Vijay Balasubramanian   +2 more
openaire   +2 more sources

Symbolic Algorithm for Inverting General k-Tridiagonal Interval Matrices

open access: yesInternational Journal of Analysis and Applications, 2023
The k-tridiagonal matrices have received much attention in recent years. Many different algorithms have been proposed to improve the efficiency of k-tridiagonal matrix estimation.
Sivakumar Thirupathi   +1 more
doaj   +1 more source

LCD codes from tridiagonal Toeplitz matrices [PDF]

open access: yesFinite Fields and Their Applications, 2021
16 ...
Shi, Minjia   +3 more
openaire   +2 more sources

Tridiagonal Matrices and Boundary Conditions [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2016
13 pages, 4 ...
Veerman, J. J. P., Hammond, David K.
openaire   +3 more sources

Tridiagonalization of completely nonnegative matrices [PDF]

open access: yesMathematics of Computation, 1972
Let M = [ m i j ] i , j = 1 n M = [{m_{ij}}]_{i,j = 1}^n be completely nonnegative (CNN), i.e., every minor of M ...
Rainey, J. W., Habetler, G. J.
openaire   +2 more sources

Positive Integer Powers of Certain Tridiagonal Matrices and Corresponding Anti-Tridiagonal Matrices

open access: yesAdvances in Mathematical Physics, 2022
In this paper, we firstly derive a general expression for the entries of the mth (m∈ℕ) power for two certain types of tridiagonal matrices of arbitrary order. Secondly, we present a method for computing the positive integer powers of the anti-tridiagonal
Mohammad Beiranvand   +1 more
doaj   +1 more source

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