Results 31 to 40 of about 5,859 (117)
Second Order Eigensensitivities of Singularly Perturbed Systems
Journal of King Saud University: Engineering Sciences, 1994 In this paper, second order eigenvalue sensitivities are derived with respect to the singular perturbation parameter whose variation changes the reduced system order.
Zaglol S. Elrazaz, Awadh A. Al-Digs
doaj +1 more source
Application for a Novel Perturbation Expansion Method
Journal of Algorithms & Computational Technology, 2009 We formulate a coupled vibration problem between a structure and an acoustic field by FEM (finite element methods). The problem leads to a nonstandard eigenvalue problem.
Li Deng +4 more
doaj +1 more source
Open Mathematics, 2018 This paper investigates the dynamic behavior analysis on the prey-predator model with ratio-dependent Monod-Haldane response function under the homogeneous Dirichlet boundary conditions, which is used to simulate a class of biological system.
Feng Xiaozhou, Song Yi, An Xiaomin
doaj +1 more source
Dissipative systems with nonlocal delayed feedback control
New Journal of Physics, 2018 We present a linear model, which mimics the response of a spatially extended dissipative medium to a distant perturbation, and investigate its dynamics under delayed feedback control.
Josua Grawitter +3 more
doaj +1 more source
Effects of small spatial variation of the reproduction rate in a two species competition model
Electronic Journal of Differential Equations, 2010 Of concern is the effect of a small spatially inhomogeneous perturbation of the reproduction rate of the first species in a two-species Lotka-Volterra competition-diffusion problem with spatially homogeneous reaction terms.
Georg Hetzer, Tung Nguyen, Wenxian Shen
doaj
A New Analytical Method for Stochastic Response of Structure-Damper System
Electronic Journal of Structural Engineering, 2009 Fundamental principles from structural dynamics, pseudo excitation method and perturbation techniques are used to develop a new fast stochastic method for seismic analysis of the combined structuredamper system.
Wei Guo, Hong-nan Li, Guo-huan Liu
doaj +1 more source
Threshold Effects for the Generalized Friedrichs Model with the Perturbation of Rank One
Abstract and Applied Analysis, 2012 A family Hμ(p), μ>0, p∈𝕋2 of the Friedrichs models with the perturbation of rank one, associated to a system of two particles, moving on the two-dimensional lattice ℤ2 is considered. The existence or absence of the unique eigenvalue of the operator Hμ(p)
Saidakhmat Lakaev +2 more
doaj +1 more source
Eigenvalue spectrum of the spheroidal harmonics: A uniform asymptotic analysis
Physics Letters B, 2015 The spheroidal harmonics Slm(θ;c) have attracted the attention of both physicists and mathematicians over the years. These special functions play a central role in the mathematical description of diverse physical phenomena, including black-hole ...
Shahar Hod
doaj +1 more source
A Simple Matrix Approach to Determination of the Helium Atom Energies
Jurnal Penelitian Fisika dan Aplikasinya, 2019 Calculation of He atomic energy levels using the first order perturbation theory taught in the Basic Quantum Mechanics course has led to relatively large errors.
Redi Kristian Pingak +2 more
doaj +1 more source
Ain Shams Engineering Journal, 2016 This paper deals with the modelling and small signal stability analysis for the two areas interconnected power system using a load frequency controller. The eigenvalues and the participation factor analysis are used to examine the small signal stability ...
Ravi Shankar +2 more
doaj +1 more source