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math-ph2010
Covariantizing Classical Field Theories
Marco Castrillón López, Mark J. Gotay
We show how to enlarge the covariance group of any classical field theory in such a way that the resulting "covariantized" theory is 'essentially equivalent' to the original. In pa…
math-ph2010★ 7 cited
Routh reduction for singular Lagrangians
Bavo Langerock, Marco Castrillón López
This paper concerns the Routh reduction procedure for Lagrangians systems with symmetry. It differs from the existing results on geometric Routh reduction in the fact that no regul…