2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112376We consider deformed special relativity (DSR) theories on commutative space-time, perhaps as an first approximation to a noncommutative space-time formulation. The corresponding field theories in general possess derivatives of all orders. From a quantisation procedure and the deformed Dirac equation in momentum space we obtain for a specific DSR model enhanced expressions for momentum and charge and finite vacuum contributions.10 pages, no figuresGeneral Relativity and Quantum Cosmologytext