Results 21 to 30 of about 675,086 (262)
Novel concepts in linear Diophantine fuzzy graphs with an application [PDF]
The linear Diophantine fuzzy graph (LDFG) notion serves as a new mathematical approach for the ambiguity and uncertainty modeling in decision-making issues. An LDFG eliminates the strict limitations of various existing graphs. The energy concept in graph
Xiaolong Shi +3 more
doaj +1 more source
Universal Behavior of Correlations between Eigenvalues of Random Matrices [PDF]
The universal connected correlations proposed recently between eigenvalues of unitary random matrices is examined numerically. We perform an ensemble average by the Monte Carlo sampling.
A. Zee +9 more
core +3 more sources
For a second order equation with a small factor at the highest derivative the asymptotic behavior of all eigenvalues of periodic and antiperiodic problems is studied. The main assumption is that the coefficient at the first derivative in the equation is the
S. A. Kashchenko
doaj +1 more source
Inverse Nodal Problem for Polynomial Pencil of a Sturm-Liouville Operator from Nodal Parameters [PDF]
A Sturm-Liouville problem with n-potential functions in the second order differential equation and which contains spectral parameter depending on linearly in one boundary condition is considered.
Sertac Goktas, Esengul Biten
doaj +1 more source
Central limit theorems for eigenvalues in a spiked population model [PDF]
In a spiked population model, the population covariance matrix has all its eigenvalues equal to units except for a few fixed eigenvalues (spikes). This model is proposed by Johnstone to cope with empirical findings on various data sets.
Bai, Zhidong, Yao, Jian-feng
core +3 more sources
The article considers asymptotic distribution of characteristic constants in periodic and antiperiodic boundary-value problems for the second-order linear equation with periodic coefficients.
Sergey A. Kashchenko
doaj +1 more source
Complex Eigenvalue Analysis of Multibody Problems via Sparsity-Preserving Krylov–Schur Iterations
In this work, we discuss the numerical challenges involved in the computation of the complex eigenvalues of damped multi-flexible-body problems. Aiming at the highest generality, the candidate method must be able to deal with arbitrary rigid body modes ...
Dario Mangoni +2 more
doaj +1 more source
48 pages, 2 figures, To appear in Annales de l ...
Favre, Charles, Jonsson, Mattias
openaire +3 more sources
Eigenvalue Ratio Detection Based on Exact Moments of Smallest and Largest Eigenvalues [PDF]
Detection based on eigenvalues of received signal covariance matrix is currently one of the most effective solution for spectrum sensing problem in cognitive radios.
Alouini, Mohamed-Slim +4 more
core +1 more source
Stability and Phase Portraits for Simple Dynamical Systems
In structural dynamics models of mechanical oscillator and vibration analysis are of great importance. In this article motion of mechanical oscillator is modelled using second order linear autonomous differential systems.
Kúdelčíková Mária, Merčiaková Eva
doaj +1 more source

