2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138752We prove an almoste representation formula for positive solutions of semilinear heat equations with power-type absorption the initial trace of which is the indicatrix function of a compact set. The representations involves a Wiener test via Bessel capacities.46 pagesAnalysis of PDEs35J60; 31C15text