Results 11 to 20 of about 36,403 (314)

A Fractal Eigenvector

open access: yesThe American Mathematical Monthly, 2022
The recursively-constructed family of Mandelbrot matrices $M_n$ for $n=1$, $2$, $\ldots$ have nonnegative entries (indeed just $0$ and $1$, so each $M_n$ can be called a binary matrix) and have eigenvalues whose negatives $-λ= c$ give periodic orbits under the Mandelbrot iteration, namely $z_k = z_{k-1}^2+c$ with $z_0=0$, and are thus contained in the ...
Neil J. Calkin   +4 more
openaire   +2 more sources

A Note on Eigenvalues and Asymmetric Graphs

open access: yesAxioms, 2023
This note is intended as a contribution to the study of quantitative measures of graph complexity that use entropy measures based on symmetry. Determining orbit sizes of graph automorphism groups is a key part of such studies. Here we focus on an extreme
Abdullah Lotfi   +2 more
doaj   +1 more source

Novel Hybrid Modified Modal Analysis and Continuation Power Flow Method for Unity Power Factor DER Placement

open access: yesEnergies, 2023
Distributed energy resource (DER) has become an effective attempt in promoting use of renewable energy resources for electricity generation. The core intention of this study is to expand an approach for optimally placing several DER units to attain the ...
Ardiaty Arief, Muhammad Bachtiar Nappu
doaj   +1 more source

Eigenvalues and eigenvectors for a hermitian gaussian operator: Role of the Schrödinger-Robertson uncertainty relation

open access: yesElectronic Research Archive, 2023
The eigenvalues and eigenvectors of a normalized gaussian operator do not seem to have been previously considered. I solve this problem for 1-dimensional translational systems.
R. F. Snider
doaj   +1 more source

Eigenvectors of Permutation Matrices [PDF]

open access: yesAdvances in Pure Mathematics, 2015
The spectral properties of special matrices have been widely studied, because of their applications. We focus on permutation matrices over a finite field and, more concretely, we compute the minimal annihilating polynomial, and a set of linearly independent eigenvectors from the decomposition in disjoint cycles of the permutation ...
García Planas, María Isabel   +1 more
openaire   +4 more sources

Dimension reduction of dynamical systems on networks with leading and non-leading eigenvectors of adjacency matrices [PDF]

open access: yesPhysical Review Research, 4, 023257 (2022), 2022
Dimension reduction techniques for dynamical systems on networks are considered to promote our understanding of the original high-dimensional dynamics. One strategy of dimension reduction is to derive a low-dimensional dynamical system whose behavior approximates the observables of the original dynamical system that are weighted linear summations of ...
arxiv   +1 more source

A method for suppressing resonance response of a vibration system coupled by springs

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Since interior noise of an electric vehicle driven by motor has no engine noise, the contribution of the road induced noise at the low-middle vehicle speed range is higher and the noise is more noticeable for passengers compared to a conventional ...
Masashi KOMADA   +3 more
doaj   +1 more source

All opinions are not equal: Toward a consensual approach to the development of drug policy

open access: yesAustralian Journal of Social Issues, Volume 57, Issue 4, Page 812-828, December 2022., 2022
Abstract Drug policy has been subjected to much scrutiny from different stakeholder groups who present sometimes very different opinions on solutions to address a problem. Reconciling such differences, that are underpinned by both anecdotal and empirical evidence, is a priority yet to be fully achieved.
Gabriel T. W. Wong, Matthew Manning
wiley   +1 more source

An Analysis Method of Symplectic Dual System for Decagonal Quasicrystal Plane Elasticity and Application

open access: yesCrystals, 2022
The symplectic solution system of decagonal quasicrystal elastic mechanics is considered. Hamiltonian dual equations together with the boundary conditions are investigated by utilizing the principle of minimum potential energy.
Guangfang Li, Lianhe Li
doaj   +1 more source

Eigenvectors and Reconstruction [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2007
In this paper, we study the simple eigenvectors of two hypomorphic matrices using linear algebra. We also give new proofs of results of Godsil and McKay.
openaire   +3 more sources

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