2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/67109The purpose of this paper is to compare two spectral sequences converging to the cohomology of a configuration space. The collapsing of these spectral sequences is established, in some cases, using Massey products.12 pages Second versionAlgebraic TopologyGeometric Topology55P19, 55P35, 57N60text