2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60027We prove a homogenization result for integral functionals in domains with oscillating boundaries, showing that the limit is defined on a degenerate Sobolev space. We apply this result to the description of the asymptotic behaviour of thin films with fast-oscillating profile, proving that they can be described by first applying the homogenization result above and subsequently a dimension-reduction technique.31 pages, 7 figuresFunctional Analysistext