Two-scale cut-and-projection convergence for quasiperiodic monotone operators

Abstract: Averaging certain class of quasiperiodic monotone operators can be simplified to the periodic homogenization setting by mapping the original quasiperiodic structure onto a periodic structure in a higher dimensional space using cut-and projection method. We characterize cut-and-projection convergence limit of the nonlinear monotone partial differential operator $-\mathrm{div} \; \sigma\left({\bf x},\frac{{\bf R}{\bf x}}{\eta}, \nabla u_\eta\right)$ for a bounded sequence $u_\eta$ in $W^{1,p}_0(\Omega)$, where $1<p < \infty$, $\Omega$ is a bounded open subset in $R^n$ with Lipschitz boundary. We identify the homogenized problem with a local equation defined on the hyperplane in the higher-dimensional space. A new corrector result is established.