Results 11 to 20 of about 1,655,330 (212)

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   +5 more sources

The eigenvalues of a tridiagonal matrix in biogeography [PDF]

open access: yesApplied Mathematics and Computation, 2011
In investigating a certain optimization problem in biogeography in [``Biogeography-based optimization'', IEEE Trans. Evol. Comput. 12, No. 6, 702--713 (2008)], \textit{D. Simon} encountered a certain tridiagonal matrix with a special structure, and made a conjecture regarding its eigenvalues.
Boris Igelnik, Dan Simon
openaire   +5 more sources

The Explicit Inverse of a Tridiagonal Matrix [PDF]

open access: yesMathematics of Computation, 1970
The closed form inverse of a tridiagonal matrix, which is a slight generalization of a matrix considered by D. Kershaw ( Math. Comp. , v. 23, 1969, pp. 189–191), is given in this note. If the matrix has integer elements, an integer multiple of the inverse can be computed by integer arithmetic,
P. Schlegel
openaire   +3 more sources

Fast triangularization of a symmetric tridiagonal matrix

open access: yesJournal of Parallel and Distributed Computing, 1989
A simple linear systolic array is presented for triangularizing a symmetric tridiagonal matrix by Gaussian Elimination using nearest neighbor pivoting. The array consists of three cells requiring an area bounded by four simple inner product cells. The design can compute the elimination in time 2n + k1 for the simple point case and using an implicit 2*2
David J. Evans 0001, Graham M. Megson
openaire   +3 more sources

The inverse of a tridiagonal matrix

open access: yesLinear Algebra and its Applications, 2001
The author obtains explicit formulae for the elements of the inverse of a general tridiagonal matrix by deriving the explicit solution of a second-order linear nonhomogeneous difference equation with variable coefficients, and then applying the solution to a boundary value problem with zero boundary values.
Mallik, Ranjan K., Ranjan K. Mallik
openaire   +3 more sources

Sensitivity of eigenvalues of an unsymmetric tridiagonal matrix

open access: yesNumerische Mathematik, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carla Ferreira 0002   +2 more
openaire   +4 more sources

Eigenvalues of 2-tridiagonal Toeplitz matrix [PDF]

open access: yesJournal of Applied Mathematics and Computational Mechanics, 2015
In this article an explicit formula for eigenvalues of a 2-tridiagonal Toeplitz matrix can be derived on the basis of a certain relation between the determinant of this matrix and the determinant of a pertinent tridiagonal matrix.
Jolanta Borowska, Lena Łacińska
doaj   +4 more sources

PARSEC.py: A Python-Based Real-Space Kohn-Sham Density Functional Theory Code Accelerated by Machine Learned Charge Density. [PDF]

open access: yesJ Comput Chem
PARSEC.py is a Python‐based real‐space Kohn–Sham DFT framework that leverages the Python scientific ecosystem for transparent, modular integration of machine‐learned densities and GPU acceleration. This unified design enables more efficient and scalable first‐principles simulations of large chemical and materials systems. ABSTRACT PARSEC.py is a Python‐
Zhang Z   +4 more
europepmc   +2 more sources

DETERMINAN SUATU MATRIKS TOEPLITZ K-TRIDIAGONAL MENGGUNAKAN METODE REDUKSI BARIS DAN EKSPANSI KOFAKTOR [PDF]

open access: yes, 2021
This paper discusses the determinants of a k-tridiagonal Toeplitz matrix using row reduction and cofactor expansion methods. The analysis was carried out recursively from the general form of the determinant of the tridiagonal Toeplitz matrix, the ...
Yahya, Lailany   +7 more
core   +1 more source

G-tridiagonal majorization on $\textbf {M}_{n,m}$

open access: yes, 2021
summary:For $X,Y\in \textbf {M}_{n,m}$, it is said that $X$ is \emph {g-tridiagonal} majorized by $Y$ (and it is denoted by $X\prec _{gt}Y$) if there exists a tridiagonal g-doubly stochastic matrix $A$ such that $X=AY$.
Sabzvari, Mahdi   +2 more
core   +1 more source

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