Results 11 to 20 of about 197,057 (337)

Arbitrary-Order Sensitivity Analysis of Eigenfrequency Problems with Hypercomplex Automatic Differentiation (HYPAD)

open access: yesApplied Sciences, 2023
The calculation of accurate arbitrary-order sensitivities of eigenvalues and eigenvectors is crucial for structural analysis applications, including topology optimization, system identification, finite element model updating, damage detection, and fault ...
Juan C. Velasquez-Gonzalez   +5 more
doaj   +1 more source

DTI Brain Template Construction Based on Gaussian Averaging

open access: yesChinese Journal of Magnetic Resonance, 2022
The tensor data of subjects are usually averaged linearly over multiple channels to obtain the tensor template. However, linear averaging ignores the vector information in the tensor. Additionally, it will render the interface between the gray matter and
DENG Lan, WANG Yuan-jun
doaj   +1 more source

Eigenvalue Expansion of Nonsymmetric Linear Compact Operators in Hilbert Space

open access: yesCommunications in Advanced Mathematical Sciences, 2021
For a symmetric linear compact resp. symmetric densely defined linear operator with compact inverse, expansion theorems in series of eigenvectors are known.
Ludwig Kohaupt
doaj   +1 more source

First-order Perturbation Theory for Eigenvalues and Eigenvectors [PDF]

open access: yesSIAM Review, 2019
We present first-order perturbation analysis of a simple eigenvalue and the corresponding right and left eigenvectors of a general square matrix, not assumed to be Hermitian or normal.
A. Greenbaum, Ren-Cang Li, M. Overton
semanticscholar   +1 more source

Eigenvalues and Jordan Forms of Dual Complex Matrices [PDF]

open access: yesCommunication on Applied Mathematics and Computation, 2023
Dual complex matrices have found applications in brain science. There are two different definitions of the dual complex number multiplication. One is noncommutative. Another is commutative. In this paper, we use the commutative definition.
Liqun Qi, Chunfeng Cui
semanticscholar   +1 more source

MASALAH EIGEN DAN EIGENMODE MATRIKS ATAS ALJABAR MIN-PLUS

open access: yesBarekeng, 2021
Eigen problems and eigenmode are important components related to square matrices. In max-plus algebra, a square matrix can be represented in the form of a graph called a communication graph.
Eka Widia Rahayu   +2 more
doaj   +1 more source

Surface Registration with Eigenvalues and Eigenvectors

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2020
This paper presents a novel surface registration technique using the spectrum of the shapes, which can facilitate accurate localization and visualization of non-isometric deformations of the surfaces.
Hajar Hamidian   +3 more
semanticscholar   +1 more source

Expansions for eigenfunction and eigenvalues of large-$n$ Toeplitz matrices [PDF]

open access: yesPapers in Physics, 2010
This paper constructs methods for finding convergent expansions for eigenvectors and eigenvalues of large-$n$ Toeplitz matrices based on a situation in which the analogous infinite-$n$ matrix would be singular. It builds upon work done by Dai, Geary, and
Leo P. Kadanoff
doaj   +1 more source

Eigenvectors from Eigenvalues Sparse Principal Component Analysis [PDF]

open access: yesJournal of Computational And Graphical Statistics, 2020
We present a novel technique for sparse principal component analysis. This method, named eigenvectors from eigenvalues sparse principal component analysis (EESPCA), is based on the formula for computing squared eigenvector loadings of a Hermitian matrix ...
H. R. Frost
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy