Results 31 to 40 of about 442,498 (206)

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

Tridiagonal matrices: Invertibility and conditioning

open access: yesLinear Algebra and its Applications, 1992
The authors consider conditioning of a tridiagonal matrix \(T\), normalized to have unit diagonal, \(\tau_ 1, \dots, \tau_{n-1}\) on the superdiagonal and \(\sigma_ 1, \dots, \sigma_{n-1}\) on the subdiagonal. The cases \(\sigma_ i \tau_ i > 0\) for all \(i\), and \(\sigma_ i \tau_ i < 0\) for all \(i\), are analyzed in detail. An exact formula for the
BRUGNANO, LUIGI, TRIGIANTE, DONATO
openaire   +1 more source

Determinants of Tridiagonal and Circulant Matrices Special Form by Chebyshev Polynomials

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika)
Along with the development of science, many researchers have found new methods to determine the determinant of a matrix of more than three orders.
Nurliantika Nurliantika   +2 more
doaj   +1 more source

Recursive Forms For Determinant Of K-Tridiagonal Toeplitz Matrices [PDF]

open access: yes, 2023
Toeplitz matrices have garnered renewed interest in recent years due to their practical applications in engineering and computational sciences. Additionally, research has shown their connection to other matrices and their significance in matrix theory ...
Agyei-Kodie, Eugene
core   +3 more sources

On periodic block-tridiagonal matrices

open access: yesLinear Algebra and its Applications, 1992
Consider an \(N\times N\) tridiagonal matrix \(X\) with entries \(a_1,\ldots,a_N\) down the main diagonal,\(b_1,\ldots, b_{N-1}\) and \(c_1,\ldots,c_{N-1}\) down the super and sub-diagonal files respectively, and zeros elsewhere. Suppose further that the \(a\)-, \(b\)- and \(c\)-sequences are periodic of period \(m\) and that \(N\equiv -1\pmod m ...
ROMANI, FRANCESCO, P. ROZSA
openaire   +1 more source

Eigendecomposition of Block Tridiagonal Matrices

open access: yes, 2018
Block tridiagonal matrices arise in applied mathematics, physics, and signal processing. Many applications require knowledge of eigenvalues and eigenvectors of block tridiagonal matrices, which can be prohibitively expensive for large matrix sizes.
José M. F. Moura (5065136)   +1 more
core   +1 more source

MHD Maxwell Hybrid Nanofluid Transport Featuring Solar Radiation and Thermo‐Diffusive Impacts Over a Permeable Slanted Stretching Sheet

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Hybrid nanofluids have emerged as next‐generation working fluids for advanced engineering application due to their superior heat transport capability in relation to the conventional nanofluids. Motivated by the rising demand for accurate prediction of transport phenomena under realistic operating situations, the present study examines the ...
B. Prabhakar Reddy   +3 more
wiley   +1 more source

Combined Matrix of a Tridiagonal Toeplitz Matrix

open access: yesAxioms
In this work, combined matrices of tridiagonal Toeplitz matrices are studied. The combined matrix is known as the Relative Gain Array in control theory.
Begoña Cantó   +2 more
doaj   +1 more source

On Quaternion Gaussian Bronze Fibonacci Numbers

open access: yesAnnales Mathematicae Silesianae, 2022
In the present work, a new sequence of quaternions related to the Gaussian Bronze numbers is defined and studied. Binet’s formula, generating function and certain properties and identities are provided.
Catarino Paula, Ricardo Sandra
doaj   +1 more source

On tridiagonalization of matrices

open access: yesLinear Algebra and its Applications, 1988
A square matrix \(B=(b_{ij})\) is called tridiagonal if \(b_{ij}=0\) for \(| i-j| >1\). A complex \(n\times n\) square matrix is called tridiagonalizable if it is unitarily similar to a tridiagonal matrix. The author presents a proof due to J. L. Noakes of the result due to \textit{B. Sturmfels} [ibid.
openaire   +1 more source

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