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The commutativity principle and lagrangian symmetries

R. Banerjee

hep-tharXiv:hep-th/0001087

Abstract

Using the commutativity of a general variation with the time differentiation we discuss both global and local (gauge) symmetries of a lagrangian from a unified point of view. The Noether considerations are thereby applicable for both cases. A complete equivalence between the hamiltonian and lagrangian formulations is established.

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