2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184546It is argued that the one-loop effective action for a space-like noncommutative scalar field theory does not exist. This indicates that such theories are not renormalizable already at one loop order and suggests supersymmetrization and reinvestigating other types of noncommutativity.1+7 pages. v2: two references addedHigh Energy Physics - Theorytext