2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60986We define several differential graded operads, some of them being related to families of polytopes : simplices and permutohedra. We also obtain a presentation by generators and relations of the operad K on associahedra introduced in a previous article.16 pages, latexQuantum Algebra18D50 (Primary) 52B11, 17A32, 17D25 (Secondary)text