2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/146101Two Poisson structures invariant with respect to discrete transformation of the Maximal root in the case of arbitrary semi-simple algebras are presented in explicit form. Thus the problem of construction of equations of n-wave hierarchy in the case of arbitrary semi simple algebra is solved finally.25 pages, no figuresHigh Energy Physics - Latticetext