Results 41 to 50 of about 448,247 (335)

New Recursive Formulas for Eigenvalue Sensitivity Analysis

Journal 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
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Structured pseudospectra in structural engineering [PDF]

, 2005
This paper presents a new method for computing the pseudospectra of a matrix that respects a prescribed sparsity structure. The pseudospectrum is defined as the set of points in the complex plane to which an eigenvalue of the matrix can be shifted by a ...
Wagenknecht, T, Agarwal, J
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Nonlinearizing two-parameter eigenvalue problems [PDF]

, 2021
We investigate a technique to transform a linear two-parameter eigenvalue problem, into a nonlinear eigenvalue problem (NEP). The transformation stems from an elimination of one of the equations in the two-parameter eigenvalue problem, by considering it ...
Ringh, Emil,, Jarlebring, Elias,
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Numerical construction of structured matrices with given eigenvalues

Special 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.
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Fast iterative solvers for PDE-constrained optimization problems [PDF]

, 2013
In this thesis, we develop preconditioned iterative methods for the solution of matrix systems arising from PDE-constrained optimization problems. In order to do this, we exploit saddle point theory, as this is the form of the matrix systems we wish to ...
Pearson, John W
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The inverse eigenvalue problem for nonnegative matrix of smaller dimensions [PDF]

, 2021
Delo obravnava inverzni problem lastnih vrednosti nenegativnih matrik manjših dimenzij. Nanaša se predvsem na članek A. M. Nazarija in Sherafata z naslovom On the inverse eigenvalue problem for nonegative matrices of order two to five.
Rotar, Bor
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The spectral Galerkin method for the differential operator eigenvalue problems based on a least-squares form and its Schur complement type implementation methods

Results 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
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The octonionic eigenvalue problem [PDF]

, 2012
By using a real matrix translation, we propose a coupled eigenvalue problem for octonionic operators. In view of possible applications in quantum mechanics, we also discuss the hermiticity of such operators.
De Leo, S, Ducati, G, Gisele Ducati, Stefano De Leo   +3 more
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A New Inverse Eigenvalue Problem for Jacobi Matrices and Corresponding Mass-Spring System

پژوهش‌های 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
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On numerical issues for the wave/finite element method [PDF]

, 2006
The waveguide finite element (WFE) method is a numerical method to investigate wave motion in a uniform waveguide. Numerical issues for the WFE method are specifically illustrated in this report.
Waki, Y., Brennan, M.J., Mace, B.R.
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