Results 11 to 20 of about 7,694 (263)

Grouped variable selection for generalized eigenvalue problems [PDF]

open access: yesSignal Processing, 2022
Many problems require the selection of a subset of variables from a full set of optimization variables. The computational complexity of an exhaustive search over all possible subsets of variables is, however, prohibitively expensive, necessitating more efficient but potentially suboptimal search strategies.
Dan, Jonathan   +2 more
openaire   +2 more sources

Efficient Reduction Algorithms for Banded Symmetric Generalized Eigenproblems via Sequentially Semiseparable (SSS) Matrices

open access: yesMathematics, 2022
In this paper, a novel algorithm is proposed for reducing a banded symmetric generalized eigenvalue problem to a banded symmetric standard eigenvalue problem, based on the sequentially semiseparable (SSS) matrix techniques.
Fan Yuan   +6 more
doaj   +1 more source

Count of eigenvalues in the generalized eigenvalue problem [PDF]

open access: yesJournal of Mathematical Physics, 2010
We study isolated and embedded eigenvalues in the generalized eigenvalue problem defined by two self-adjoint operators with a positive essential spectrum and a finite number of isolated eigenvalues. The generalized eigenvalue problem determines the spectral stability of nonlinear waves in infinite-dimensional Hamiltonian systems. The theory is based on
Chugunova, Marina, Pelinovsky, Dmitry
openaire   +2 more sources

A generalized Fucik type eigenvalue problem for p-Laplacian

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
In this paper we study the generalized Fucik type eigenvalue for the boundary value problem of one dimensional $p-$Laplace type differential equations \[ \left\{\begin{array}{lll} - (\varphi( u')) ' = \psi(u), \quad -T< x < T; \\ \quad u(-T)=0, \quad u ...
Yuanji Cheng
doaj   +1 more source

Left and right inverse eigenpairs problem with a submatrix constraint for the generalized centrosymmetric matrix

open access: yesOpen Mathematics, 2020
Left and right inverse eigenpairs problem is a special inverse eigenvalue problem. There are many meaningful results about this problem. However, few authors have considered the left and right inverse eigenpairs problem with a submatrix constraint.
Li Fan-Liang
doaj   +1 more source

Computation of interior elastic transmission eigenvalues using a conforming finite element and the secant method

open access: yesResults in Applied Mathematics, 2020
The interior elastic transmission eigenvalue problem, arising from the inverse scattering theory of non-homogeneous elastic media, is nonlinear, non-self-adjoint and of fourth order.
Xia Ji, Peijun Li, Jiguang Sun
doaj   +1 more source

Nonlinear eigenvalue problems for generalized Painlevé equations [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2019
25 pages, 5 figures, 1 ...
Carl M Bender   +2 more
openaire   +3 more sources

A Prediction-Correction Dynamic Method for Large-Scale Generalized Eigenvalue Problems

open access: yesAbstract and Applied Analysis, 2013
This paper gives a new prediction-correction method based on the dynamical system of differential-algebraic equations for the smallest generalized eigenvalue problem.
Xin-long Luo, Jia-ru Lin, Wei-ling Wu
doaj   +1 more source

Parallel Generalized Real Symmetric-Definite Eigenvalue Problem

open access: yesJournal of Research of the National Institute of Standards and Technology, 2020
A computationally fast Fortran 90+ quadruple precision portable parallel GRSDEP (generalized real symmetric-definite eigenvalue problem) package suitable for large (80,000 x 80,000 or greater) dense matrices is discussed in this paper.
James S. Sims, María Belén Ruiz
openaire   +2 more sources

Controlled precision QUBO-based algorithm to compute eigenvectors of symmetric matrices

open access: yesPLoS ONE, 2022
We describe an algorithm to compute the extremal eigenvalues and corresponding eigenvectors of a symmetric matrix which is based on solving a sequence of Quadratic Binary Optimization problems.
Benjamin Krakoff   +2 more
doaj   +2 more sources

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