2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115334We determine all (1,1)-knots which admit an essential meridional surface, namely, we give a construction which produces (1,1)-knots having essential meridional surfaces, and show that if a (1,1)-knot admits an essential meridional surface then it comes from the given construction.28 pages, 6 figuresGeometric Topology57M25, 57N10Meridional surfaces and (1,1)-knotstext