2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/152044This paper studies isometric immersions of space forms by means of a hierarchy of finite dimensional integrable systems in Lax form on loop algebras.15 pages, latex2e, postscript available at http://www_sfb288.math.tu-berlin.de/preprints.htmlDifferential Geometrytext