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Instabilities and bifurcations of nonlinear impurity modes
Stability of nonlinear discrete impurity mode nonlinear schrodinger equation the discrete soliton discrete breathing
2014/12/29
We study the structure and stability of nonlinear impurity modes in the discrete nonlinear Schrödinger equation with a single on-site nonlinear impurity emphasizing the effects of interplay betwe...
Rich example of geometrically induced nonlinearity: From rotobreathers and kinks to moving localized modes and resonant energy transfer
Mechanical systems linear geometric properties nonlinear dynamic equations nonlinear wave resonance energy transfer
2014/12/29
We present an experimentally realizable, simple mechanical system with linear interactions whose geometric nature leads to nontrivial, nonlinear dynamical equations. The equations of motion are derive...
Emergence of unstable modes in an expanding domain for energy-conserving wave equations
Simulated energy wave equation the nonlinear schrodinger equation the coupling
2014/12/25
Motivated by recent work on instabilities in expanding domains in reaction–diffusion settings, we propose an analog of such mechanisms in energy-conserving wave equations. In particular, we consider a...
Localized breathing modes in granular crystals with defects
One dimensional chain tight elastic beads Hertz interaction breathing pattern
2014/12/24
We study localized modes in uniform one-dimensional chains of tightly packed and uniaxially compressed elastic beads in the presence of one or two light-mass impurities. For chains composed of beads o...
Semi-Blind System Identification in Wireless Relay Networks via Gaussian Process Iterated Conditioning on the Modes Estimation
Relay networks System Identification Gaussian processes Kernel methods
2011/7/7
This paper presents a flexible stochastic model developed for a class of cooperative wireless relay networks, in which the relay processing functionality is not known at the destination. The challenge...
The Modes of Provision of Prison Services in a Comparative Perspective
prisons privatization public services
2009/9/25
This paper aims to compare the performance of two modes of provision of prison services: public, and with the participation of private companies. There are few empirical studies concerning the alterna...
Local Influence on Posterior Distributions under Multiplicative Modes of Perturbation
Bayesian robustness case deletion
2009/9/22
Any unperturbed and perturbed posterior density can formally be
linked by a mixture. Many divergences between the unperturbed and perturbed
posterior density-global measures of inuenceof the perturb...
Functional data analysis of nonlinear modes of variation
Functional data analysis nonlinear modes of variation analysis of variance Fréchet mean Fréchet variance variation in manifolds
2009/9/16
A set of curves or images of similar shape is an increasingly common functional data set collected in the sciences. Principal Component Analysis (PCA) is the most widely used technique to decompose va...