Variationally equivalent problems and variations of Noether currents
Mathematical Physics
2016-02-11 v1 math.MP
Abstract
We consider systems of local variational problems defining non vanishing cohomolgy classes. In particular, we prove that the conserved current associated with a generalized symmetry, assumed to be also a symmetry of the variation of the corresponding local inverse problem, is variationally equivalent to the variation of the strong Noether current for the corresponding local system of Lagrangians. This current is conserved and a sufficient condition will be identified in order such a current be global.
Cite
@article{arxiv.1512.03176,
title = {Variationally equivalent problems and variations of Noether currents},
author = {M. Francaviglia and M. Palese and E. Winterroth},
journal= {arXiv preprint arXiv:1512.03176},
year = {2016}
}
Comments
10 pages, slightly revised version of the published one