2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/152589We construct a cohomology theory controlling the deformations of a general Drinfel'd algebra. The picture presented here has two sides -- the combinatorial one related with the fact of the existence of a graded Lie algebra structure on the simplicial cochain complex of the associahedra, and the algebraic one related with the algebra of derivations on the bar construction.6 pagesHigh Energy Physics - TheoryQuantum Algebratext