The general form of the master equation is found for conformal field theories with Z3 symmetry under the condition that the fields which generate the W3 algebra belong to a universal envelope algebra of an arbitrary Kac-Moody algebra.
机构:Laboratoire de Physique Théorique, l'Ecole Normale Supérieure1 1 Unité Propre de Recherche, Centre National de la Recherche Scientifique, F-75231 Paris Cedex 05, associee a l'Ecole Normale Superieure a l'Universite Paris-Sud.