Multiscale stochastic homogenization of monotone operators
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Multiscale stochastic homogenization is studied for divergence structure parabolic
problems. More specifically we consider the asymptotic behaviour of
a sequence of realizations of the form
$\frac{\partial
u^\omega_\varepsilon}{\partial t}-
$div$(a(T_1(\frac{x}{\varepsilon_1})\omega_1,
T_2(\frac{x}{\varepsilon_2})\omega_2 ,t, D
u^\omega_\varepsilon))=f.$
It is shown, under certain
structure assumptions on the random map
$a(\omega_1,\omega_2,t,\xi)$,
that the sequence $\{u^\omega_\e}$ of solutions converges weakly in $
L^p(0,T;W^{1,p}_0(\Omega))$ to the solution $u$ of the homogenized problem $
\frac{\partial u}{\partial t} - $div$( b( t,D u
)) = f$.