Results 41 to 50 of about 7,477,558 (327)

The Establishment and Dynamic Properties of a New 4D Hyperchaotic System with Its Application and Statistical Tests in Gray Images

open access: yesEntropy, 2020
In this paper, a new 4D hyperchaotic system is generated. The dynamic properties of attractor phase space, local stability, poincare section, periodic attractor, quasi-periodic attractor, chaotic attractor, bifurcation diagram, and Lyapunov index are ...
Lina Ding, Qun Ding
doaj   +1 more source

On the global attractor of delay differential equations with unimodal feedback [PDF]

open access: yes, 2009
We give bounds for the global attractor of the delay differential equation x(over dot) (t) = -mu x(t) + f(x(t - tau)), where f is unimodal and has negative Schwarzian derivative.
Liz, Eduardo   +3 more
core   +1 more source

The asymptotic number of attractors in the random map model [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2003
The random map model is a deterministic dynamical system in a finite phase space with n points. The map that establishes the dynamics of the system is constructed by randomly choosing, for every point, another one as being its image. We derive here explicit formulas for the statistical distribution of the number of attractors in the system.
Romero, David, Zertuche, Federico
openaire   +2 more sources

Random attractor for the 3D viscous primitive equations driven by fractional noises [PDF]

open access: yesJournal of Differential Equations, 2016
In this article we study the perturbation of primitive equations (PEs) of large-scale ocean and atmosphere dynamics defined on a bounded open subset ℧ ∈ R 3 and driven by infinite-dimensional additive fractional Wiener processes with Hilbert-space-valued.
Guo-Li Zhou
semanticscholar   +1 more source

Random Attractors for Stochastic Retarded 2D-Navier-Stokes Equations with Additive Noise

open access: yesJournal of Function Spaces, 2018
In this paper, the existence and the upper semicontinuity of a pullback attractor for stochastic retarded 2D-Navier-Stokes equation on a bounded domain are obtained.
Xiaoyao Jia, Xiaoquan Ding
doaj   +1 more source

Random potentials and cosmological attractors [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2017
I show that the problem of realizing inflation in theories with random potentials of a limited number of fields can be solved, and agreement with the observational data can be naturally achieved if at least one of these fields has a non-minimal kinetic term of the type used in the theory of cosmological $α$-attractors.
openaire   +2 more sources

Random Delta-Hausdorff-attractors

open access: yesDiscrete and Continuous Dynamical Systems - B, 2018
v1: 20 pages v2: 20 pages, corrected typos, streamlined ...
Scheutzow, Michael   +1 more
openaire   +4 more sources

Invariant Gragh and Random Bony Attractors

open access: yes, 2021
13 pages, 0 ...
Ghane, Fateme Helen   +2 more
openaire   +3 more sources

H1-Random Attractors and Asymptotic Smoothing Effect of Solutions for Stochastic Boussinesq Equations with Fluctuating Dynamical Boundary Conditions

open access: yesAbstract and Applied Analysis, 2013
This work is concerned with the random dynamics of two-dimensional stochastic Boussinesq system with dynamical boundary condition. The white noises affect the system through a dynamical boundary condition.
Yijin Zhang
doaj   +1 more source

Random attractors for stochastic two-compartment Gray-Scott equations with a multiplicative noise

open access: yesOpen Mathematics, 2016
In this paper, we consider the existence of a pullback attractor for the random dynamical system generated by stochastic two-compartment Gray-Scott equation for a multiplicative noise with the homogeneous Neumann boundary condition on a bounded domain of
Jia Xiaoyao, Gao Juanjuan, Ding Xiaoquan
doaj   +1 more source

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