2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153869In paper IV (solv-int/9704013) we have considered a string living in the infinite lattice that was, in a sense, generated by a "particle". Here we show how to construct multi-string eigenstates generated by several particles. It turns out that, at least in some cases, this allows us to bypass the difficulties of constructing multi-particle states. We also present and discuss the "dispersion relations" for our particles-strings.LaTeX, 7 pagesExactly Solvable and Integrable Systemstext