2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/132317We prove dispersive estimates for the low frequency part of the Schrodinger group for a large class of potentials in dimensions greater or equal to four. As a consequence, we extend the result of Journe, Sofer and Sogge to a larger class of potentials. In this revised version a mistake in the proof of the estimate (B.4) is removed.19 pagesMathematical PhysicsAnalysis of PDEs35L15; 35B40; 47F05text