65 citations · 341 across the 62 of their papers we have counts for
Showing 1996Show all
2 papers · 1 filter
hep-th1996
Trivial Second-Order Lagrangians in Classial Field Theory
Dan Radu Grigore
Trivial second-order Lagrangians are studied and a complete description of the dependence on the second-order derivatives is given. This extends previous work of Olver and others.…
hep-th1996★ 4 cited
On a Order Reduction Theorem in the Lagrangian Formalism
Dan Radu Grigore
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 fro…