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STUDY OF THE EIGENVALUE SPECTRA OF THE NEUTRON TRANSPORT PROBLEM IN PN APPROXIMATION [PDF]

open access: yesEPJ Web of Conferences, 2021
The study of the steady-state solutions of neutron transport equation requires the introduction of appropriate eigenvalues: this can be done in various different ways by changing each of the operators in the transport equation; such modifications can be ...
Saracco P.   +4 more
doaj   +1 more source

Generalized eigenvalue problems [PDF]

open access: yesAnnals of Physics, 1967
Abstract We examine the equation L(λψ = 0, where L is a linear operator of the usual sort, except that it is not necessarily self-adjoint, and its dependence on the eigenvalue parameter λ is not necessarily linear. Variational principles, normalization of eigenfunctions, resolution of the identity and operator inversion are some of the aspects ...
  +6 more sources

Numerical Computation of Spectral Solutions for Sturm-Liouville Eigenvalue Problems

open access: yesInternational Journal of Analysis and Applications, 2023
This paper focuses on the study of Sturm-Liouville eigenvalue problems. In the classical Chebyshev collocation method, the Sturm-Liouville problem is discretized to a generalized eigenvalue problem where the functions represent interpolants in suitably ...
Sameh Gana
doaj   +1 more source

Generalized eigenvalue problems with specified eigenvalues [PDF]

open access: yesIMA Journal of Numerical Analysis, 2013
We consider the distance from a (square or rectangular) matrix pencil to the nearest matrix pencil in 2-norm that has a set of specified eigenvalues. We derive a singular value optimization characterization for this problem and illustrate its usefulness for two applications.
D. Kressner   +3 more
openaire   +6 more sources

THE EXISTENCE OF SOLUTION OF GENERALIZED EIGENPROBLEM IN INTERVAL MAX-PLUS ALGEBRA

open access: yesBarekeng, 2023
An eigenproblem of a matrix  is  where  and . Vector  and    are eigenvector and eigenvalue, respectively. General form of eigenvalue problem is  with , .
Siswanto Siswanto
doaj   +1 more source

ADAPTIVE SOLUTION OF THE NEUTRON DIFFUSION EQUATION WITH HETEROGENEOUS COEFFICIENTS USING THE MIXED FINITE ELEMENT METHOD ON STRUCTURED MESHES [PDF]

open access: yesEPJ Web of Conferences, 2021
The neutron transport equation can be used to model the physics of the nuclear reactor core. Its solution depends on several variables and requires a lot of high precision computations.
Do Minh-Hieu   +2 more
doaj   +1 more source

Trimmed sampling algorithm for the noisy generalized eigenvalue problem

open access: yesPhysical Review Research, 2023
Solving the generalized eigenvalue problem is a useful method for finding energy eigenstates of large quantum systems. It uses projection onto a set of basis states which are typically not orthogonal.
Caleb Hicks, Dean Lee
doaj   +1 more source

One-Shot Distributed Generalized Eigenvalue Problem (DGEP): Concept, Algorithm and Experiments

open access: yesApplied Sciences, 2022
This paper focuses on the design of a distributed algorithm for generalized eigenvalue problems (GEPs) in one-shot communication. Since existing distributed methods for eigenvalue decomposition cannot be applied to GEP, a general one-shot distributed GEP
Kexin Lv   +4 more
doaj   +1 more source

Penalized Versus Constrained Generalized Eigenvalue Problems [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2017
18 pages, 8 ...
Gaynanova, Irina   +2 more
openaire   +2 more sources

Free Vibrations of Multi-Degree Structures: Solving Quadratic Eigenvalue Problems with an Excitation and Fast Iterative Detection Method

open access: yesVibration, 2022
For the free vibrations of multi-degree mechanical structures appeared in structural dynamics, we solve the quadratic eigenvalue problem either by linearizing it to a generalized eigenvalue problem or directly treating it by developing the iterative ...
Chein-Shan Liu   +2 more
doaj   +1 more source

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