Results 21 to 30 of about 54,142 (287)

Global Attractor for Impulsive Reaction-Diffusion Equation [PDF]

open access: yesNonlinear Oscillations, 2005
In this paper, we consider a reaction-diffusion equation with nonsmooth nonlinearity whose solutions have impulse effects at fixed moments of time. We show how this object generates a nonautonomous multivalued dynamical system and prove the existence of a compact semiinvariant global attractor in the phase space.
IOVANE, Gerardo, O. KAPUSTYAN
openaire   +3 more sources

Global Attractor of Atmospheric Circulation Equations with Humidity Effect

open access: yesAbstract and Applied Analysis, 2012
Global attractor of atmospheric circulation equations is considered in this paper. Firstly, it is proved that this system possesses a unique global weak solution in L2(Ω,R4).
Hong Luo
doaj   +1 more source

Global attractors of the degenerate fractional Kirchhoff wave equation with structural damping or strong damping

open access: yesAdvances in Nonlinear Analysis, 2022
This article deals with the degenerate fractional Kirchhoff wave equation with structural damping or strong damping. The well-posedness and the existence of global attractor in the natural energy space by virtue of the Faedo-Galerkin method and energy ...
Yang Wenhua, Zhou Jun
doaj   +1 more source

Sharp Lower Bounds for the Dimension of the Global Attractor of the Sabra Shell Model of Turbulence [PDF]

open access: yes, 2006
In this work we derive a lower bounds for the Hausdorff and fractal dimensions of the global attractor of the Sabra shell model of turbulence in different regimes of parameters.
Boris Levant   +20 more
core   +4 more sources

Strong Global Attractors for 3D Wave Equations with Weakly Damping

open access: yesAbstract and Applied Analysis, 2012
We consider the existence of the global attractor A1 for the 3D weakly damped wave equation. We prove that A1 is compact in (H2(Ω)∩H01(Ω))×H01(Ω) and attracts all bounded subsets of (H2(Ω)∩H01(Ω))×H01(Ω) with respect to the norm of (H2(Ω)∩H01(Ω))×H01(Ω).
Fengjuan Meng
doaj   +1 more source

Attractors for Nonautonomous Parabolic Equations without Uniqueness

open access: yesInternational Journal of Differential Equations, 2010
Using the theory of uniform global attractors of multivalued semiprocesses, we prove the existence of a uniform global attractor for a nonautonomous semilinear degenerate parabolic equation in which the conditions imposed on the nonlinearity provide the ...
Cung The Anh, Nguyen Dinh Binh
doaj   +1 more source

Quantum Zakharov Model in a Bounded Domain [PDF]

open access: yes, 2011
We consider an initial boundary value problem for a quantum version of the Zakharov system arising in plasma physics. We prove the global well-posedness of this problem in some Sobolev type classes and study properties of solutions.
A. Babin   +23 more
core   +1 more source

Uncovering the Underlying Mechanisms of Cancer Metabolism through the Landscapes and Probability Flux Quantifications

open access: yesiScience, 2020
Summary: Cancer metabolism is critical for understanding the mechanism of tumorigenesis, yet the understanding is still challenging. We studied gene-metabolism regulatory interactions and quantified the global driving forces for cancer-metabolism ...
Wenbo Li, Jin Wang
doaj   +1 more source

Regularity of Global Attractor for the Reaction-Diffusion Equation

open access: yesAbstract and Applied Analysis, 2012
By using an iteration procedure, regularity estimates for the linear semigroups, and a classical existence theorem of global attractor, we prove that the reaction-diffusion equation possesses a global attractor in Sobolev space Hk for all k>0, which ...
Hong Luo
doaj   +1 more source

Cross-attractor modeling of resting-state functional connectivity in psychiatric disorders

open access: yesNeuroImage, 2023
Resting-state functional connectivity (RSFC) is altered across various psychiatric disorders. Brain network modeling (BNM) has the potential to reveal the neurobiological underpinnings of such abnormalities by dynamically modeling the structure-function ...
Yinming Sun   +2 more
doaj   +1 more source

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