2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137880The clique-width is known to be unbounded in the class of unit interval graphs. In this paper, we show that this is a minimal hereditary class of unbounded clique-width, i.e., in every hereditary subclass of unit interval graphs the clique-width is bounded by a constant.9 pages, 1 figureCombinatorics05C75text