Results 41 to 50 of about 197,054 (272)

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

X-simple image eigencones of tropical matrices [PDF]

open access: yes, 2016
We investigate max-algebraic (tropical) one-sided systems $A\otimes x=b$ where $b$ is an eigenvector and $x$ lies in an interval $X$. A matrix $A$ is said to have $X$-simple image eigencone associated with an eigenvalue $\lambda$, if any eigenvector $x ...
Plavka, Jan, Sergeev, Sergei
core   +2 more sources

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

Galerkin eigenvector approximations [PDF]

open access: yesMathematics of Computation, 2000
39 ...
openaire   +2 more sources

Invariant Subspaces: An Alternative for Introducing Eigenvectors and Eigenvalues

open access: yesAnnales de Didactique et de Sciences Cognitives, 2023
The concepts of eigenvalue and eigenvector are typically approached algorithmically in introductory linear algebra courses. However, a more conceptual orientation involves connecting these notions to the concept of one-dimensional invariant subspace ...
Gisela Camacho, Asuman Oktaç
doaj   +1 more source

Eigenvector Approximation Leading to Exponential Speedup of Quantum Eigenvalue Calculation [PDF]

open access: yes, 2003
We present an efficient method for preparing the initial state required by the eigenvalue approximation quantum algorithm of Abrams and Lloyd. Our method can be applied when solving continuous Hermitian eigenproblems, e.g., the Schroedinger equation, on ...
Anargyros Papageorgiou   +6 more
core   +1 more source

Application of the Perturbation Method for Determination of Eigenvalues and Eigenvectors for the Assumed Static Strain

open access: yesCivil and Environmental Engineering, 2014
The paper presents the perturbation method which was used for computation of eigenvalues and eigenvectors for the assumed homogeneous state of strain in the hyperelastic Murnaghan material.
Major Izabela, Major Maciej
doaj   +1 more source

Static quark-antiquark potential and Dirac eigenvector correlators

open access: yes, 2008
We represent the Polyakov loop correlator as a spectral sum of correlators of eigenvectors of the lattice Dirac operator. This spectral representation is studied numerically using quenched SU(3) configurations below and above the deconfinement ...
C. Hagen   +5 more
core   +1 more source

Integrality of Homfly (1,1)-tangle invariants [PDF]

open access: yes, 2006
Given an invariant J(K) of a knot K, the corresponding (1,1)-tangle invariant J'(K)=J(K)/J(U) is defined as the quotient of J(K) by its value J(U) on the unknot U.
H R Morton, Le, Rudolph, Turaev, Wenzl
core   +3 more sources

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

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