Results 21 to 30 of about 7,423,787 (281)

A new eigenvalue problem for the difference operator with nonlocal conditions

open access: yesNonlinear Analysis, 2019
In the paper, the spectrum structure of one-dimensional differential operator with nonlocal conditions and of the difference operator, corresponding to it, has been exhaustively investigated.
Mifodijus Sapagovas   +3 more
doaj   +1 more source

A nonlocal eigenvalue problem and the stability of spikes for reaction-diffusion systems with fractional reaction rates [PDF]

open access: yes, 2003
We consider a nonlocal eigenvalue problem which arises in the study of stability of spike solutions for reaction-diffusion systems with fractional reaction rates such as the Sel'kov model, the Gray-Scott system, the hypercycle Eigen and Schuster ...
Winter, M   +3 more
core   +1 more source

New Recursive Formulas for Eigenvalue Sensitivity Analysis

open access: yesJournal of King Saud University: Engineering Sciences, 1997
Eigenvalue sensitivity analysis represents a key discipline in many engineering system applications where the dynamic behavior of such systems is closely related to the eigenvalues of the system (state) matrix.
A.A. Al-Ohaly, M.A. El-Kady
doaj   +1 more source

Numerical construction of structured matrices with given eigenvalues

open access: yesSpecial Matrices, 2019
We consider a structured inverse eigenvalue problem in which the eigenvalues of a real symmetric matrix are specified and selected entries may be constrained to take specific numerical values or to be nonzero.
Sutton Brian D.
doaj   +1 more source

Some Modified Matrix Eigenvalue Problems [PDF]

open access: yesSIAM Review, 1973
We consider the numerical calculation of several matrix eigenvalue problems which require some manipulation before the standard algorithms may be used. This includes finding the stationary values of a quadratic form subject to linear constraints and determining the eigenvalues of a matrix which is modified by a matrix of rank one.
openaire   +3 more sources

The spectral Galerkin method for the differential operator eigenvalue problems based on a least-squares form and its Schur complement type implementation methods

open access: yesResults in Applied Mathematics
The differential operator eigenvalue problems often arise in the field of physics and engineering, such as solid band structure, electron orbitals of atoms or molecules, and quantum bound states.
Jiaoxia Huang, Yonghui Qin
doaj   +1 more source

A New Inverse Eigenvalue Problem for Jacobi Matrices and Corresponding Mass-Spring System

open access: yesپژوهش‌های ریاضی, 2020
Introduction Many problems in sciences and engineering can be studied by mathematical models. These models are classified as direct problems and inverse problems.
Hanif Mirzaei
doaj  

Perturbation theorems for the matrix eigenvalue problem [PDF]

open access: yes, 1986
Elsner L. Perturbation theorems for the matrix eigenvalue problem. Portugaliae Mathematica.
Elsner, Ludwig
core  

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

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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