Results 41 to 50 of about 475,064 (272)

Tridiagonal realization of the anti-symmetric Gaussian $\beta$-ensemble [PDF]

open access: yes, 2009
The Householder reduction of a member of the anti-symmetric Gaussian unitary ensemble gives an anti-symmetric tridiagonal matrix with all independent elements.
Forrester P. J.   +7 more
core   +1 more source

Spectra and pseudo-spectra of tridiagonal k-Toeplitz matrices and the topological origin of the non-Hermitian skin effect [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical
We establish new results on the spectra and pseudo-spectra of tridiagonal k-Toeplitz operators and matrices. In particular, we prove the connection between the winding number of the eigenvalues of the symbol function and the exponential decay of the ...
H. Ammari   +4 more
semanticscholar   +1 more source

Identities and exponential bounds for transfer matrices [PDF]

open access: yes, 2012
This paper is about analytic properties of single transfer matrices originating from general block-tridiagonal or banded matrices. Such matrices occur in various applications in physics and numerical analysis.
Molinari, Luca G
core   +2 more sources

Schrödinger’s tridiagonal matrix

open access: yesSpecial Matrices, 2021
In the third part of his famous 1926 paper ‘Quantisierung als Eigenwertproblem’, Schrödinger came across a certain parametrized family of tridiagonal matrices whose eigenvalues he conjectured.
Kovačec Alexander
doaj   +1 more source

Analytical Inversion of Tridiagonal Hermitian Matrices

open access: yesMathematical Problems of Computer Science, 2022
In this paper we give an algorithm for inverting complex tridiagonal Hermitian matrices with optimal computational efforts. For matrices of a special form and, in particular, for Toeplitz matrices, the derived formulas lead to closed-form expressions for
Yu. R. Hakopian, Avetik H. Manukyan
semanticscholar   +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

Differential qd algorithm with shifts for rank-structured matrices [PDF]

open access: yes, 2012
Although QR iterations dominate in eigenvalue computations, there are several important cases when alternative LR-type algorithms may be preferable.
Zhlobich, Pavel
core   +1 more source

Perturbation series for Jacobi matrices and the quantum Rabi model [PDF]

open access: yesOpuscula Mathematica, 2021
We investigate eigenvalue perturbations for a class of infinite tridiagonal matrices which define unbounded self-adjoint operators with discrete spectrum.
Mirna Charif, Lech Zielinski
doaj   +1 more source

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 ...
G. J. Habetler, J. W. Rainey
openaire   +2 more sources

Fine Spectra of Symmetric Toeplitz Operators

open access: yesAbstract and Applied Analysis, 2012
The fine spectra of 2-banded and 3-banded infinite Toeplitz matrices were examined by several authors. The fine spectra of n-banded triangular Toeplitz matrices and tridiagonal symmetric matrices were computed in the following papers: Altun, “On the fine
Muhammed Altun
doaj   +1 more source

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