2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35822By using conformal Killing-Yano tensors, and their generalisations, we obtain scalar potentials for both the source-free Maxwell and massless Dirac equations. For each of these equations we construct, from conformal Killing-Yano tensors, symmetry operators that map any solution to another.35 pages, plain TeXGeneral Relativity and Quantum CosmologyDebye Potentials for Maxwell and Dirac Fields from a Generalisation of the Killing-Yano Equationtext