2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54889The question of the stability of the four dimensional Gross-Perry-Sorkin Kaluza-Klein magnetic monopole solution is investigated within the framework of a N=2, D=5 supergravity theory. We show that this solution does not support a spin structure of the Killing type and is therefore, contrary to previous expectations, not necessarily stable.9 Pages, RevTexHigh Energy Physics - Theorytext