Results 71 to 80 of about 475,064 (272)
Co-operatives as an Aid to Small Business in Germany [PDF]
, 1959 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.
Fassnacht, Bertel, Weisser, Gerhard
core +1 more source
Another proof of Pell identities by using the determinant of tridiagonal matrix
, 2011 In this paper, another proof of Pell identities is presented by using the determinant of tridiagonal matrices.
Bozkurt, Durmuş, Yaşar, Meral
core +1 more source
Toeplitz matrices commuting with tridiagonal matrices
Linear Algebra and its Applications, 1981 Abstractwe prove that if R is a nonscalar Toeplitz matrix Ri, j=r∦i−j∦ which commutes with a tridiagonal matrix with simple spectrum, then rkr1=uk-1r2r1cos puk-1(cos p), k=4, 5,…, with Uk the Chebychev polynomial of the second kind, where p is determined from cos p=12r21−r1r3r22−r1r3.
openaire +2 more sources
Stochastic Airy semigroup through tridiagonal matrices [PDF]
Annals of Probability, 2016 We determine the operator limit for large powers of random tridiagonal matrices as the size of the matrix grows. The result provides a novel expression in terms of functionals of Brownian motions for the Laplace transform of the Airy$_\beta$ process ...
V. Gorin, Mykhaylo Shkolnikov
semanticscholar +1 more source
Advanced Quantum Technologies, EarlyView.The critical parameters and energies, at which the wave function of the Bose Einstein Condensate in a double well trap exhibit the symmetry breaking, are estimated. The phase space representation of the states is obtained trough the Wigner function and the trends of the negativities are analyzed.
D. J. Nader, E. Serrano‐Ensástiga
wiley +1 more source
Space of isospectral periodic tridiagonal matrices [PDF]
Algebraic and Geometric Topology, 2018 A periodic tridiagonal matrix is a tridiagonal matrix with additional two entries at the corners. We study the space of Hermitian periodic tridiagonal $n\times n$-matrices with a fixed simple spectrum.
A. Ayzenberg
semanticscholar +1 more source
Energy Science &Engineering, Volume 13, Issue 6, Page 2856-2873, June 2025.ABSTRACT This attempt examines the heat transfer enhancement from unsteady bioconvective Maxwell nanofluid flow under the incidence of solar radiation influenced by viscous dissipation and chemical reaction through a porous medium. The nanofluid contains silver and titanium alloy hybrid nanoparticles with gyrotactic micro‐organisms in ethylene glycol ...
Bhupendra K. Sharma +4 more
wiley +1 more source
Inverse Spectral Problems for Tridiagonal N by N Complex Hamiltonians
Symmetry, Integrability and Geometry: Methods and Applications, 2009 In this paper, the concept of generalized spectral function is introduced for finite-order tridiagonal symmetric matrices (Jacobi matrices) with complex entries.
Gusein Sh. Guseinov
doaj +1 more source
Stabilized Krylov Subspace Recurrences via Randomized Sketching
Numerical Linear Algebra with Applications, Volume 32, Issue 3, June 2025.ABSTRACT Recurrences building orthonormal bases for polynomial Krylov spaces have been classically used for approximation purposes in various numerical linear algebra contexts. Variants aiming to limit memory and computational costs by using truncated recurrences often have convergence constraints.
Valeria Simoncini, YiHong Wang
wiley +1 more source
Fine Spectra of Tridiagonal Symmetric Matrices
International Journal of Mathematics and Mathematical Sciences, 2011 The fine spectra of upper and lower triangular banded matrices were examined by several authors. Here we determine the fine spectra of tridiagonal symmetric infinite matrices and also give the explicit form of the resolvent operator for the sequence ...
Muhammed Altun
doaj +1 more source