2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/65044We give a class of three-dimensional Stein spaces W together with a hypersurface H, such that the complement W-H is not Stein, but such that for every analytic surface S \subset W the complement S-S \cap H is Stein. This class is constructed using forcing equations and gives new counter-examples to the hypersection problem.5 pages, to appear in Archiv der MathematikComplex VariablesAlgebraic Geometry14J26; 32C25; 32L05, 32E10text