*Accepted Paper*

**Inserted:** 15 sep 2019

**Last Updated:** 6 jan 2021

**Journal:** J.London Math Soc.

**Year:** 2020

**Doi:** 10.1112/jlms.12431

**Abstract:**

We prove a homogenization theorem for a class of quadratic convolution energies with random coefficients. Under suitably stated hypotheses of ergodicity and stationarity we prove that the $\Gamma$-limit of such energy is almost surely a deterministic quadratic Dirichlet-type integral functional, whose integrand can be characterized through an asymptotic formula. The proof of this characterization relies on results on the asymptotic behaviour of subadditive processes. The proof of the limit theorem uses a blow-up technique common for local energies, that can be extended to this `asymptotically-local' case. As a particular application we derive a homogenization theorem on random perforated domains.

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