2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59812The famous Lomonosov's invariant subspace theorem states that if a continuous linear operator T on an infinite-dimensional normed space E "commutes" with a compact nonzero operator K, i.e., TK=KT, then T has a non-trivial closed invariant subspace. We generalize this theorem for multivalued linear operators.10 pagesFunctional AnalysisGeneral TopologyOperator Algebras47A15, 47A06 (primary), 46A32, 54C60 (secondary)text