Results 101 to 110 of about 1,655,330 (212)

State-Space Parametrizations of Multivariable Linear Systems using Tridiagonal Matrix Forms [Elektronisk resurs]

, 1996
Tridiagonal parametrizations of linear state-space models are proposed for multivariable system identification. The parametrizations are surjective, i.e. all systems up to a given order can be described.
Helmersson, Anders,, McKelvey, Tomas,
core  

Block tridiagonal matrix inversion and fast transmission calculations

, 2020
A method for the inversion of block tridiagonal matrices encountered in electronic structure calculations is developed, with the goal of efficiently determining the matrices involved in the Fisher-Lee relation for the calculation of electron transmission
B Sørensen, Hans Henrik, Per Christian Hansen, Dan Erik Petersen, Stig Skelboe, Kurt Stokbro   +5 more
core  

On minimal eigenvalues of a class of tridiagonal matrices

, 2009
[[abstract]]It is known that the worst case near-far resistance of optimum multiuser detectors for asynchronous Gaussian multiple-access channels can be expressed in terms of a class of block-tridiagonal matrices, and the minimal eigenvalues of such a ...
Cheng, Jay;Berger, Toby, Jay Cheng, Toby Berger   +2 more
core   +1 more source

Tridiagonal Symmetries of Models of Nonequilibrium Physics

Symmetry, Integrability and Geometry: Methods and Applications, 2008
We study the boundary symmetries of models of nonequilibrium physics where the steady state behaviour strongly depends on the boundary rates. Within the matrix product state approach to many-body systems the physics is described in terms of matrices ...
Boyka Aneva
doaj   +1 more source

Symmetric Tridiagonal Eigenvalue Solver Across CPU Graphics Processing Unit (GPU) Nodes

Applied Sciences
In this work, an improved and scalable implementation of Cuppen’s algorithm for diagonalizing symmetric tridiagonal matrices is presented. This approach uses a hybrid-heterogeneous parallelization technique, taking advantage of GPU and CPU in a ...
Erika Hernández-Rubio, Alberto Estrella-Cruz, Amilcar Meneses-Viveros, Jorge Alberto Rivera-Rivera, Liliana Ibeth Barbosa-Santillán, Sergio Víctor Chapa-Vergara   +5 more
doaj   +1 more source

The Double Dyson Index β Effect in Non-Hermitian Tridiagonal Matrices. [PDF]

Entropy (Basel), 2023
Goulart CA, Pato MP.
europepmc   +1 more source

A Formula for Computing Integer Powers for One Type of Tridiagonal Matrix [PDF]

, 2010
In this paper, we derive the general expression of the r(th) power (r is an element of N) for one type of tridiagonal ...
Kıyak, H., Yılmaz, F., Bozkurt, D., Gürses, I.   +3 more
core  

Parallel Factorizations for Tridiagonal Matrices

, 1993
The authors analyze the problem of solving tridiagonal linear systems on parallel computers. A wide class of efficient parallel solvers is derived by considering different parallel factorizations of partitioned matrices.
T. Politi, P. Amodio, L. Brugnano, Brugnano, Luigi   +3 more
core   +1 more source

Invariant regions and global solutions for reaction-diffusion systems with a tridiagonal symmetric Toeplitz matrix of diffusion coefficients

Electronic Journal of Differential Equations, 2014
In this article we construct the invariant regions for m-component reaction-diffusion systems with a tridiagonal symmetric Toeplitz matrix of diffusion coefficients and with nonhomogeneous boundary conditions.
Salem Abdelmalek
doaj  

Inhomogeneous isotropic quantum spin chain associated with the difference Lamé equation

Forum of Mathematics, Sigma
The spectrum and orthogonal eigenbasis are computed of a tridiagonal matrix encoding a finite-dimensional reduction of the difference Lamé equation at the single-gap integral value of the coupling parameter.
Jan Felipe van Diejen
doaj   +1 more source