Results 41 to 50 of about 1,859,718 (319)

Global attractors, exponential attractors and determining modes for the three dimensional Kelvin-Voigt fluids with "fading memory"

open access: yesEvolution Equations and Control Theory, 2020
The three-dimensional viscoelastic fluid flow equations, arising from the motion of Kelvin-Voigt (Kelvin-Voight) fluids in bounded domains is considered in this work.
Manil T. Mohan
semanticscholar   +1 more source

Parametrization of global attractors experimental observations and turbulence [PDF]

open access: yes, 2007
This paper is concerned with rigorous results in the theory of turbulence and fluid flow. While derived from the abstract theory of attractors in infinite-dimensional dynamical systems, they shed some light on the conventional heuristic theories of ...
Robinson, James C.
core   +1 more source

Chevron Pattern Equations: Exponential Attractor and Global Stabilization [PDF]

open access: yesVietnam Journal of Mathematics, 2021
The initial boundary value problem for a nonlinear system of equations modeling the chevron patterns is studied in one and two spatial dimensions. The existence of an exponential attractor and the stabilization of the zero steady state solution through application of a finite-dimensional feedback control is proved in two spatial dimensions.
Habiba Kalantarova   +2 more
openaire   +3 more sources

Exponential Attractor for Coupled Ginzburg-Landau Equations Describing Bose-Einstein Condensates and Nonlinear Optical Waveguides and Cavities

open access: yesAbstract and Applied Analysis, 2013
The existence of the exponential attractors for coupled Ginzburg-Landau equations describing Bose-Einstein condensates and nonlinear optical waveguides and cavities with periodic initial boundary is obtained by showing Lipschitz continuity and the ...
Gui Mu, Jun Liu
doaj   +1 more source

Open sets of Axiom A flows with exponentially mixing attractors [PDF]

open access: yesProceedings of the American Mathematical Society, 2016
For any dimension d ≥ 3
Ara('u)jo, V.   +2 more
openaire   +2 more sources

Qualitative behaviors of the high-order Lorenz-Stenflo chaotic system arising in mathematical physics describing the atmospheric acoustic-gravity waves

open access: yesAdvances in Difference Equations, 2017
The boundedness of chaotic systems plays an important role in investigating the stability of the equilibrium, estimating the Lyapunov dimension of attractors, the Hausdorff dimension of attractors, the existence of periodic solutions, chaos control, and ...
Guangyun Zhang, Fuchen Zhang, Min Xiao
doaj   +1 more source

Quasi-stability and Exponential Attractors for A Non-Gradient System---Applications to Piston-Theoretic Plates with Internal Damping [PDF]

open access: yes, 2016
We consider a nonlinear (Berger or Von Karman) clamped plate model with a {\em piston-theoretic} right hand side---which include non-dissipative, non-conservative lower order terms.
J. Howell, I. Lasiecka, J. Webster
semanticscholar   +1 more source

Exponential attractors for weakly damped wave equation with sub-quintic nonlinearity

open access: yesComputers and Mathematics with Applications, 2019
In this paper, we study the existence of exponential attractors for the weakly damped wave equation u t t + γ u t − Δ u + f ( u ) = g in a bounded smooth domain of R 3 .
Feng-Juan Meng, Cuncai Liu
semanticscholar   +1 more source

The Existence of Weak D-Pullback Exponential Attractor for Nonautonomous Dynamical System

open access: yesThe Scientific World Journal, 2016
First, for a process U(t,τ)∣t≥τ, we introduce a new concept, called the weak D-pullback exponential attractor, which is a family of sets M(t)∣t≤T, for any T∈R, satisfying the following: (i) M(t) is compact, (ii) M(t) is positively invariant, that is, U(t,
Yongjun Li, Xiaona Wei, Yanhong Zhang
doaj   +1 more source

Systemic modeling of chaotic EEG during human sleep

open access: yesInformatics in Medicine Unlocked, 2023
The use of chaos theory in modeling biological signals is becoming increasingly common, especially in EEG signal processing for predicting and detecting different brain states.
Mahmoud Alipour   +1 more
doaj   +1 more source

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