Pullback attractors for stochastic heat equations in materials with memory
Author(s) -
Igor Čhuešhov,
José Real,
Tomás Caraballo
Publication year - 2008
Publication title -
discrete and continuous dynamical systems - b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 53
eISSN - 1553-524X
pISSN - 1531-3492
DOI - 10.3934/dcdsb.2008.9.525
Subject(s) - compact space , randomness , pullback , attractor , random dynamical system , pullback attractor , mathematics , hilbert space , stochastic process , parabolic partial differential equation , heat equation , mathematical analysis , statistical physics , partial differential equation , physics , linear system , linear dynamical system , statistics
We study the asymptotic behaviour of a non-autonomous stochastic reaction-diffusion equation with memory. In fact, we prove the existence of a random pullback attractor for our stochastic parabolic PDE with memory. The randomness enters in our model as an additive Hilbert valued noise. We first prove that the equation generates a random dynamical system (RDS) in an appropriate phase space. Due to the fact that the memory term takes into account the whole past history of the phenomenon, we are not able to prove compactness of the generated RDS, but its asymptotic compactness, ensuring thus the existence of the random pullback attractor.
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