Results 11 to 20 of about 22,900 (243)

Scalability of k-Tridiagonal Matrix Singular Value Decomposition [PDF]

open access: yesMathematics, 2021
Singular value decomposition has recently seen a great theoretical improvement for k-tridiagonal matrices, obtaining a considerable speed up over all previous implementations, but at the cost of not ordering the singular values.
Andrei Tănăsescu   +3 more
doaj   +2 more sources

The Pascal Matrix, Commuting Tridiagonal Operators and Fourier Algebras [PDF]

open access: greenLinear Algebra and its Applications
15 ...
W. Riley Casper, Ignacio Zurrian
openalex   +3 more sources

General tridiagonal random matrix models, limiting distributions and fluctuations [PDF]

open access: bronzeProbability Theory and Related Fields, 2008
In this paper we discuss general tridiagonal matrix models which are natural extensions of the ones given by Dumitriu and Edelman. We prove here the convergence of the distribution of the eigenvalues and compute the limiting distributions in some particular cases.
Ionel Popescu
openalex   +5 more sources

Predicting New Bc Mesons' Excited States: The Tridiagonal Matrix-Numerov Approach

open access: diamondEast European Journal of Physics
The properties of Bottom-charmed meson states were extensively investigated using Numerov's tridiagonal matrix approach to predicting the radial wavefunctions.
Ali A. Alkathiri   +7 more
doaj   +3 more sources

Sufficient Conditions for Existence of the LU Factorization of Toeplitz Symmetric Tridiagonal Matrices

open access: yesTrends in Computational and Applied Mathematics, 2023
The characterization of inverses of symmetric tridiagonal and block tridiagonal matrices and the development of algorithms for finding the inverse of any general non-singular tridiagonal matrix are subjects that have been studied by many authors.
C. G. Almeida, S. A. E. Remigio
doaj   +1 more source

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

On the Generalized Gaussian Fibonacci Numbers and Horadam Hybrid Numbers: A Unified Approach

open access: yesAxioms, 2022
In this paper, we consider an approach based on the elementary matrix theory. In other words, we take into account the generalized Gaussian Fibonacci numbers. In this context, we consider a general tridiagonal matrix family.
Fatih Yılmaz, Mustafa Özkan
doaj   +1 more source

From superintegrability to tridiagonal representation of β-ensembles

open access: yesPhysics Letters B, 2022
The wonderful formulas by I. Dumitriu and A. Edelman [1,2] rewrite β-ensemble, with eigenvalue integrals containing Vandermonde factors in the power 2β, through integrals over tridiagonal matrices, where β-dependent are the powers of individual matrix ...
A. Mironov, A. Morozov, A. Popolitov
doaj   +1 more source

Analytic determinants and inverses of Toeplitz and Hankel tridiagonal matrices with perturbed columns

open access: yesSpecial Matrices, 2020
In this paper, our main attention is paid to calculate the determinants and inverses of two types Toeplitz and Hankel tridiagonal matrices with perturbed columns.
Fu Yaru   +3 more
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

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