View Single Post
Hendrik van Hees
#6
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
http://theory.gsi.de/~vanhees/ mailto:hees@comp.tamu.edu