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Hendrik van Hees
Feb11-06, 06:00 AM
P: n/a
Arnold Neumaier wrote:

> In general, the symmetry group of a conservative physical system is
> that of the action, and not that of the Lagrangian.

More generally it's the symmetry group of the functional derivative of
the action.

Hendrik van Hees Texas A&M University
Phone: +1 979/845-1411 Cyclotron Institute, MS-3366
Fax: +1 979/845-1899 College Station, TX 77843-3366