RT Journal Article T1 Hamiltonian structure of gauge-invariant variational problems A1 Castrillón López, Marco A1 Muñoz Masqué, Jaime AB Let C→M be the bundle of connections of a principal bundle on M . The solutions to Hamilton–Cartan equations for a gauge-invariant Lagrangian density Λ on C satisfying a weak condition of regularity, are shown to admit an affine fibre-bundle structure over the set of solutions to Euler–Lagrange equations for Λ . This structure is also studied for the Jacobi fields and for the moduli space of extremals. PB International Press SN 1095-0761 YR 2012 FD 2012 LK https://hdl.handle.net/20.500.14352/44008 UL https://hdl.handle.net/20.500.14352/44008 LA spa NO Ministerio de Ciencia e Innovación DS Docta Complutense RD 18 abr 2025