2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66083We propose a variant to the Etingof-Kazhdan construction of quantization functors. We construct the twistor J_Φassociated to an associator Φusing cohomological techniques. We then introduce a criterion ensuring that the ``left Hopf algebra'' of a quasitriangular QUE algebra is flat. We prove that this criterion is satisfied at the universal level. This provides a construction of quantization functors, equivalent to the Etingof-Kazhdan construction.Quantum AlgebraA cohomological construction of quantization functors of Lie bialgebrastext