RT Journal Article T1 A geometrical theory of the electromagnetic field and the gauge transformation A1 Fernández-Rañada, Antonio AB A modification of Weyl's theory of the electromagnetic field is presented, such that the usual gravitational Lagrangian becomes invariant under the corresponding definition of gauge transformation. As another advantage the problem of the weight of the tensors in the construction of Lagrangians is eliminated. PB American Institute of Physics SN 0022-2488 YR 1972 FD 1972-10 LK https://hdl.handle.net/20.500.14352/64920 UL https://hdl.handle.net/20.500.14352/64920 NO © 1972 The American Institute of Physics. DS Docta Complutense RD 7 abr 2025