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Bilinear systems with two supports: Koszul resultant matrices, eigenvalues, and eigenvectors [PDF]

open access: greenInternational Symposium on Symbolic and Algebraic Computation, 2018
A fundamental problem in computational algebraic geometry is the computation of the resultant. A central question is when and how to compute it as the determinant of a matrix whose elements are the coefficients of the input polynomials up-to sign.
Matías R. Bender   +3 more
openalex   +3 more sources

On Differentiating Eigenvalues and Eigenvectors [PDF]

open access: greenEconometric Theory, 1985
Let X0 be a square matrix (complex or otherwise) and u0 a (normalized) eigenvector associated with an eigenvalue λo of X0, so that the triple (X0, u0, λ0) satisfies the equations Xu = λu, . We investigate the conditions under which unique differentiable functions λ(X) and u(X) exist in a neighborhood of X0 satisfying λ(X0) = λO, u(X0) = u0, Xu = λu ...
Jan R. Magnus
openaire   +5 more sources

A teaching proposal for the study of Eigenvectors and Eigenvalues

open access: goldJournal of Technology and Science Education, 2017
In this work, we present a teaching proposal which emphasizes on visualization and physical applications in the study of eigenvectors and eigenvalues.
María José Beltrán Meneu   +2 more
doaj   +3 more sources

Eigenvalues and Eigenvectors [PDF]

open access: hybrid, 1997
The decomposition of a matrix A into a product of two or three matrices can (depending on the characteristics of those matrices) be a very useful first step in computing such things as the rank, the determinant, or an (ordinary or generalized) inverse (of A) as well as a solution to a linear system having A as its coefficient matrix.
Sheldon Axler
  +4 more sources

Extremal Eigenvalues and Eigenvectors of Deformed Wigner Matrices [PDF]

open access: yes, 2014
We consider random matrices of the form $H = W + \lambda V$, $\lambda\in\mathbb{R}^+$, where $W$ is a real symmetric or complex Hermitian Wigner matrix of size $N$ and $V$ is a real bounded diagonal random matrix of size $N$ with i.i.d.\ entries that are
Lee, Ji Oon, Schnelli, Kevin
core   +3 more sources

On Approximating the eigenvalues and eigenvectors of linear continuous operators

open access: greenJournal of Numerical Analysis and Approximation Theory, 1997
Not available.
Emil Cătinaş, I Păvăloiu
doaj   +3 more sources

Almost Eigenvalues and Eigenvectors of Almost Mathieu Operators

open access: yesApplied and Numerical Harmonic Analysis, 2015
The almost Mathieu operator is the discrete Schr\"odinger operator $H_{\alpha,\beta,\theta}$ on $\ell^2(\mathbb{Z})$ defined via $(H_{\alpha,\beta,\theta}f)(k) = f(k + 1) + f(k - 1) + \beta \cos(2\pi \alpha k + \theta) f(k)$. We derive explicit estimates
Strohmer, Thomas, Wertz, Tim
core   +2 more sources

Guaranteed a posteriori bounds for eigenvalues and eigenvectors: multiplicities and clusters [PDF]

open access: yesMathematics of Computation, 2020
This paper presents a posteriori error estimates for conforming numerical approximations of eigenvalue clusters of second-order self-adjoint elliptic linear operators with compact resolvent.
É. Cancès   +4 more
semanticscholar   +1 more source

The eigenvectors-eigenvalues identity and Sun's conjectures on determinants and permanents [PDF]

open access: yesLinear and multilinear algebra, 2022
In this paper, we prove several conjectures raised by Zhi-Wei Sun on determinants and permanents by the eigenvectors-eigenvalues identity recently highlighted by Denton, Parke, Tao and Zhang.
Xuejun Guo, Xin Li, Zhengyu Tao, Tao Wei
semanticscholar   +1 more source

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