Results 21 to 30 of about 624,973 (302)

Eigenvaluations

open access: yesAnnales Scientifiques de l’École Normale Supérieure, 2007
48 pages, 2 figures, To appear in Annales de l ...
Favre, Charles, Jonsson, Mattias
openaire   +3 more sources

OPTIMIZATION OF 3D LOCAL ORIENTATION MAP CALCULATION IN THE MATLAB FRAMEWORK

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2015
This paper presents the development and evaluation of a new approach toward the optimization of 3D local orientation map calculation in the Matlab framework. This new approach can be detailed as: optimize eigenvector calculation for PCA analysis of X-ray
Ranya Al Darwich, Laurent Babout
doaj   +1 more source

Consistency in Positive Reciprocal Matrices: An Improvement in Measurement Methods

open access: yesIEEE Access, 2018
Consistency estimation of decision-makers' judgments in decision-making processes is fundamental to generating agreements and making decisions. Analytic hierarchy process (AHP) is a widely used method to solve this type of problem, enabling evaluation of
Jose Ignacio Pelaez   +2 more
doaj   +1 more source

Construction of L-equienergetic graphs using some graph operations

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
For a graph G with n vertices and m edges, the eigenvalues of its adjacency matrix A(G) are known as eigenvalues of G. The sum of absolute values of eigenvalues of G is called the energy of G.
S. K. Vaidya, Kalpesh M. Popat
doaj   +1 more source

A parameterized shift-splitting preconditioner for saddle point problems

open access: yesMathematical Biosciences and Engineering, 2019
Recently, Chen and Ma [A generalized shift-splitting preconditioner for saddle point problems, Applied Mathematics Letters, 43 (2015) 49-55] introduced a generalized shift-splitting preconditioner for saddle point problems with symmetric positive ...
Li-Tao Zhang , Chao-Qian Li, Yao-Tang Li
doaj   +1 more source

Inequalities between Dirichlet and Neumann eigenvalues on the Heisenberg group [PDF]

open access: yes, 2009
We prove that for any domain in the Heisenberg group the (k+1)'th Neumann eigenvalue of the sub-Laplacian is strictly less than the k'th Dirichlet eigenvalue.
Frank, Rupert L., Laptev, Ari
core   +2 more sources

Vortex-induced vibration of two elastically connected bodies: experimental verification of lock-in to multiple eigenmodes

open access: yesJournal of Fluid Science and Technology, 2017
This study examines experimentally the vortex-induced vibration (VIV) of a mechanical system with two eigenmodes. A previous experiment setup was refined to enable the experiment, and was placed in a circulating water channel to submerge a movable ...
Yoshiki NISHI, Komei SAITOH
doaj   +1 more source

Addendum to Methods of extending lower order problems to higher order problems in the context of smallest eigenvalue comparisons

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
This paper serves as an addendum to the paper titled Methods of extending lower order problems to higher order problems in the context of smallest eigenvalue comparisons appearing in EJQTDE no. 99, 2011.
Jeffrey Neugebauer
doaj   +1 more source

On solving the second boundary value problem for the Viscous Transonic Equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
In a rectangular domain, the second boundary value problem for the Viscous Transonic Equation is considered. The uniqueness of the solution to the problem is proved using the energy integral method. The existence of a solution is proved by the method of
Yu.P. Apakov, Kh.K. Ibrokhimov
doaj   +1 more source

Eigenvalue Criterion-Based Feature Selectionin Principal Component Analysis of Speech

open access: yesAdvances in Electrical and Electronic Engineering, 2012
This article presents a specific approach for selecting a limited set of most relevant, information rich speech data from the whole amount of training data.
Peter Viszlay   +2 more
doaj   +1 more source

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