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Observavility Brunovsky normal form: Multi-output linear dynamical systems [PDF]

open access: yes2009 American Control Conference, 2009
This paper gives the sufficient and necessary conditions to guarantee the existence of a linear change of coordinates to transform a multi-output linear dynamical system (modulo a nonlinear term depending on inputs and outputs) in the observability Brunovsky canonical form.
Boutat, Driss   +2 more
openaire   +2 more sources

dynamical-systems-laboratory-ar/model_birdsong_neural: codes for manuscript "Dynamical model for the neural activity of singing Serinus canaria"

open access: yes, 2020
Code to numerically integrate a model for neural population dynamics in birdsong ...
dynamical-systems-laboratory-ar
core   +1 more source

Normal form transformations for structural dynamics: An introduction for linear and nonlinear systems. [PDF]

open access: yesJournal of Structural Dynamics, 2022
The aim of this paper is to provide an introduction to using normal form transformations for linear and nonlinear structural dynamics examples. Starting with linear single-degree-of-freedom systems, a series of examples are presented that eventually lead to the analysis of a system of two coupled nonlinear oscillators.
openaire   +2 more sources

Normal form transforms separate slow and fast modes in stochastic dynamical systems [PDF]

open access: yes, 2008
© 2007 Elsevier B.V. All rights reserved.Modelling stochastic systems has many important applications. Normal form coordinate transforms are a powerful way to untangle interesting long term macroscale dynamics from insignificant detailed microscale ...
Roberts, A.   +2 more
core   +1 more source

Self-similar cuspidal formation by runaway thermocapillary forces in thin liquid films

open access: yesNew Journal of Physics, 2019
Many physical systems give rise to dynamical behavior leading to cuspidal shapes which represent a singularity of the governing equation. The cusp tip often exhibits self-similarity as well, indicative of scaling symmetry invariant in time up to a change
Chengzhe Zhou, Sandra M Troian
doaj   +1 more source

Single-Mode and Dual-Mode Nongomogeneous Dissipative Structures in the Nonlocal Model of Erosion

open access: yesМоделирование и анализ информационных систем, 2015
We consider a periodic boundary-value problem for a nonlinear equation with the deviating spatial argument in the case when the deviation is small. This equation is called a spatially nonlocal erosion equation.
A. M. Kovaleva, D. A. Kulikov
doaj   +1 more source

Resonances in a spring-pendulum: algorithms for equivariant singularity theory [PDF]

open access: yes, 1998
A spring-pendulum in resonance is a time-independent Hamiltonian model system for formal reduction to one degree of freedom, where some symmetry (reversibility) is maintained.
Vegter, G   +15 more
core   +2 more sources

Planar undulator motion excited by a fixed traveling wave: Quasiperiodic averaging, normal forms, and the free electron laser pendulum

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2013
We present a mathematical analysis of planar motion of energetic electrons moving through a planar dipole undulator, excited by a fixed planar polarized plane wave Maxwell field in the x-ray free electron laser (FEL) regime.
James A. Ellison   +3 more
doaj   +1 more source

Chaos on Fuzzy Dynamical Systems

open access: yes, 2021
Given a continuous map f:X→X on a metric space, it induces the maps f¯:K(X)→K(X), on the hyperspace of nonempty compact subspaces of X, and f^:F(X)→F(X), on the space of normal fuzzy sets, consisting of the upper semicontinuous functions u:X→[0,1] with ...
Félix Martínez-Giménez   +2 more
core   +1 more source

State maps from bilinear differential forms [PDF]

open access: yes, 2010
State equations need often to be constructed from a higher-order model of a system, resulting for example from the interconnection of subsystems, or from system identification procedures.
van der Schaft, Arjan   +5 more
core   +2 more sources

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