Results 11 to 20 of about 130,152 (295)

On a problem in eigenvalue perturbation theory [PDF]

Journal of Mathematical Analysis and Applications, 2015
We consider additive perturbations of the type $K_t=K_0+tW$, $t\in [0,1]$, where $K_0$ and $W$ are self-adjoint operators in a separable Hilbert space $\mathcal{H}$ and $W$ is bounded.
Gesztesy, Fritz, Naboko, Sergey N., Nichols, Roger   +2 more
core   +3 more sources

Singular perturbation of simple eigenvalues [PDF]

Rocky Mountain Journal of Mathematics, 1976
W. M. Greenlee
openalex   +5 more sources

Perturbation in eigenvalues

Linear Algebra and its Applications, 1982
AbstractWe study the dependence of the eigenvalues of a tridiagonal matrix upon off-diagonal entries. The change in the eigenvalues when a cross-diagonal product approaches zero or infinity is estimated.
William W. Hager, Roger N. Pederson
openalex   +4 more sources

Perturbation of eigenvalues with an engineering application

Journal of Mathematical Analysis and Applications, 1969
W. M. Greenlee
openalex   +3 more sources

Shape Perturbation of Grushin Eigenvalues [PDF]

The Journal of Geometric Analysis, 2021
AbstractWe consider the spectral problem for the Grushin Laplacian subject to homogeneous Dirichlet boundary conditions on a bounded open subset of $${\mathbb {R}}^N$$ R N .
Lamberti P. D., Luzzini P., Musolino P.
openaire   +3 more sources

Expansion of eigenvalues of the perturbed discrete bilaplacian [PDF]

Monatshefte für Mathematik, 2022
AbstractWe consider the family $$\begin{aligned} {\widehat{{ H}}}_\mu := {\widehat{\varDelta }} {\widehat{\varDelta }} - \mu {\widehat{{ V}}},\qquad \mu \in {\mathbb {R}}, \end{aligned}$$
Kholmatov, Shokhrukh Yu., Khalkhuzhaev, Ahmad, Pardabaev, Mardon   +2 more
openaire   +3 more sources

An explicit formula of perturbating stiffness matrix for partial natural frequency assignment using static output feedback

Journal of Low Frequency Noise, Vibration and Active Control, 2018
The partial eigenvalue (or natural frequency) assignment or placement, only by the stiffness matrix perturbation, of an undamped vibrating system is addressed in this paper. A novel and explicit formula of determining the perturbating stiffness matrix is
Jiafan Zhang, Jianping Ye, Huajiang Ouyang, Xiang Yin   +3 more
doaj   +1 more source

Topology uniformity pinning control for multi-agent flocking

Complex & Intelligent Systems, 2023
The optimal selection of pinning nodes for multi-agent flocking is a challenging NP-hard problem. Current pinning node selection strategies mainly rely on centrality measures of complex networks, which lack rigorous mathematical proof for effective ...
Jintao Liu, Zhonghong Wu, Qiao Xin, Minggang Yu, Lianlian Liu   +4 more
doaj   +1 more source

Development of an Adjoint Flux Calculation Technique for Exact Perturbation Theory in Monte Carlo Code MCS [PDF]

EPJ Web of Conferences
A calculation technique computing the adjoint flux of perturbed system is developed for the exact perturbation theory in Monte Carlo transport. By using a correlated sampling and iterated fission probability methods together, the adjoint flux of ...
Jo Yunki, Lee Deokjung
doaj   +1 more source

Perturbation series for Jacobi matrices and the quantum Rabi model [PDF]

Opuscula Mathematica, 2021
We investigate eigenvalue perturbations for a class of infinite tridiagonal matrices which define unbounded self-adjoint operators with discrete spectrum.
Mirna Charif, Lech Zielinski
doaj   +1 more source