2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69129Nijenhuis operators are constructed from particular bialgebras called dendriform- Nijenhuis bialgebras. It turns out that such operators commute with TD-operators, kind of Baxter-Rota operators, and therefore closely related to dendriform trialgebras. Examples are given.21 pagesQuantum AlgebraMathematical Physics17A30; 18D50text