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On a Order Reduction Theorem in the Lagrangian Formalism

Dan Radu Grigore
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Abstract

We provide a new proof of a important theorem in the Lagrangian formalism about necessary and sufficient conditions for a second-order variational system of equations to follow from a first-order Lagrangian.

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Dan Radu Grigore. 1996-05-10. On a Order Reduction Theorem in the Lagrangian Formalism. https://doi.org/10.1007/bf02741483

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