2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59475We demonstrate an obstruction to finding certain splittings of four-manifolds along sufficiently twisted circle bundles over Riemann surfaces, arising from Seiberg-Witten theory. These obstructions are used to show a non-splitting result for algebraic surfaces of general type.14 pagesDifferential Geometry55R57; 55R58text