Structural vertices of extended SU(3)-chiral lagrangians in the large-Nc approach

Abstract We establish the connection between the structural coupling constants of the phenomenological chiral lagrangian and the coefficients of effective lagrangians obtained in the QCD-bosonization models by means of the derivative expansion. The extension of the chiral lagrangian describing matrix elements of the pseudoscalar gluon density is examined. The large- N c relations for corresponding structural constants are elaborated.