2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/65376The aim of this paper is to present remarkable classes of Lie-admissible algebras containing in particular the associative algebras, the Vinberg algebras and pre-Lie algebras. We determine the associated quadratic operads and their dual operads.5 pagesRings and Algebras17Axx, 17Bxxtext