Results 11 to 20 of about 40,983 (302)

The modal sensitivity, robustness and roughness of dynamic systems (review article) [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The review focuses on the development of theories of sensitivity and modal sensitivity, robustness and roughness of dynamic systems. In modern theory of dynamic systems and automatic control systems, there is a need to study the properties of sensitivity,
Roman O. Omorov
doaj   +1 more source

Dimension reduction of dynamical systems on networks with leading and non-leading eigenvectors of adjacency matrices

open access: yesPhysical Review Research, 2022
Dimension reduction techniques for dynamical systems on networks are considered to promote our understanding of the original high-dimensional dynamics.
Naoki Masuda, Prosenjit Kundu
doaj   +1 more source

Dynamical systems theory for music dynamics

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 1995
We show that, when music pieces are cast in the form of time series of pitch variations, the concepts and tools of dynamical systems theory can be applied to the analysis of temporal dynamics in music. (i) Phase space portraits are constructed from the time series wherefrom the dimensionality is evaluated as a measure of the global dynamics of each ...
Boon, Jean-Pierre, Decroly, O.
openaire   +3 more sources

Time-averaging axion-like interacting scalar fields models

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In this paper, we study a cosmological model inspired in the axionic matter with two canonical scalar fields $$\phi _1$$ ϕ 1 and $$\phi _2$$ ϕ 2 interacting through a term added to its potential. Introducing novel dynamical variables, and a dimensionless
Saikat Chakraborty   +3 more
doaj   +1 more source

Dark Type Dynamical Systems: The Integrability Algorithm and Applications

open access: yesAlgorithms, 2022
Based on a devised gradient-holonomic integrability testing algorithm, we analyze a class of dark type nonlinear dynamical systems on spatially one-dimensional functional manifolds possessing hidden symmetry properties and allowing their linearization on
Yarema A. Prykarpatsky   +3 more
doaj   +1 more source

Double field theory at SL(2) angles

open access: yesJournal of High Energy Physics, 2017
An extended field theory is presented that captures the full SL(2) × O(6, 6 + n) duality group of four-dimensional half-maximal supergravities. The theory has section constraints whose two inequivalent solutions correspond to minimal D = 10 supergravity ...
Franz Ciceri   +4 more
doaj   +1 more source

Learning Theory for Dynamical Systems

open access: yesSIAM Journal on Applied Dynamical Systems, 2023
The task of modelling and forecasting a dynamical system is one of the oldest problems, and it remains challenging. Broadly, this task has two subtasks - extracting the full dynamical information from a partial observation; and then explicitly learning the dynamics from this information.
Tyrus Berry, Suddhasattwa Das
openaire   +2 more sources

Theory of the Loschmidt echo and dynamical quantum phase transitions in disordered Fermi systems

open access: yesPhysical Review Research, 2023
In this work we develop the theory of the Loschmidt echo and dynamical phase transitions in noninteracting strongly disordered Fermi systems after a quench.
Tuomas I. Vanhala, Teemu Ojanen
doaj   +1 more source

Category Theory for Autonomous and Networked Dynamical Systems

open access: yesEntropy, 2019
In this discussion paper we argue that category theory may play a useful role in formulating, and perhaps proving, results in ergodic theory, topogical dynamics and open systems theory (control theory). As examples, we show how to characterize Kolmogorov&
Jean-Charles Delvenne
doaj   +1 more source

A survey on impulsive dynamical systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
In this survey we provide an introduction to the theory of impulsive dynamical systems in both the autonomous and nonautonomous cases. In the former, we will show two different approaches which have been proposed to analyze such kind of dynamical systems
Everaldo Bonotto   +3 more
doaj   +1 more source

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