2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/216206We present a procedure for constructing actions describing propagation of W-strings on group manifolds by using the Hamiltonian canonical formalism and representations of W-algebras in terms of Kac-Moody currents. An explicit construction is given in the case of the $W_3$ string.9 pages, LaTex, macros included, no figuresHigh Energy Physics - Theorytext