2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/172423For an abelian category, a category equivalent to its derived category is constructed by means of specific projective (injective) multicomplexes, the so-called homological resolutions.7 pages, 1 figure, published in Extracta Mathematicae, 22(3), 315-324 (2007)Algebraic TopologyCategory Theorytext