TY - JOUR AU - Castrillón López, Marco AU - Marsden, Jerrold E. PY - 2008 DO - 10.1007/s10455-008-9108-x SN - 0232-704X UR - https://hdl.handle.net/20.500.14352/50728 T2 - Annals of global analysis and geometry AB - Reduction for field theories with symmetry can be done either covariantly—that is, on spacetime—or dynamically—that is, after spacetime is split into space and time. The purpose of this article is to show that these two reduction procedures are, in an... LA - eng M2 - 263 PB - Springer KW - Variational calculus · Symmetries · Reduction · Euler–Poincare equations TI - Covariant and Dynamical Reduction for Principal BundleField Theories TY - journal article VL - 34 ER -