2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/51486There are several mathematical and physical reasons why Dirac's quantization must hold. How far one can go without it remains an open problem. The present work outlines a few steps in this direction.To appear in Proceedings of "IV Taller de la Division de Gravitacion y Fisica Matematica". Misprints corrected, references and acknowledgments addedHigh Energy Physics - Theorytext