Castrillón López, MarcoMuñoz Masqué, Jaime2023-06-202023-06-202003-120034-487710.1016/S0034-4877(03)80039-3https://hdl.handle.net/20.500.14352/50805Lagrangians are investigated which are defined on the product of the cotangent bundle of a manifold and a vector space, where the vector space is the representation space of a linear representation of the group U(1) as the gauge group. It is shown that Lagrangians with gauge-invariant universal currents are described in terms of gauge-invariant Lagrangians and invariant functions on the vector space.engjournal articlehttp://www.sciencedirect.com/science/article/pii/S0034487703800393http://www.sciencedirect.com/restricted access530.145.8517.95Current formgauge invarianceinteraction bundlejet bundlesLagrangianPoincaré-CartanformGeometría diferencial1204.04 Geometría Diferencial