Physics – Mathematical Physics
Scientific paper
2008-03-07
J. Math. Phys. 49 (2008), 103506, 34 pp
Physics
Mathematical Physics
36 pages, extended version
Scientific paper
10.1063/1.2993117
We prove that potential conservation laws have characteristics depending only on local variables if and only if they are induced by local conservation laws. Therefore, characteristics of pure potential conservation laws have to essentially depend on potential variables. This statement provides a significant generalization of results of the recent paper by Bluman, Cheviakov and Ivanova [J. Math. Phys., 2006, V.47, 113505]. Moreover, we present extensions to gauged potential systems, Abelian and general coverings and general foliated systems of differential equations. An example illustrating possible applications of proved statements is considered. A special version of the Hadamard lemma for fiber bundles and the notions of weighted jet spaces are proposed as new tools for the investigation of potential conservation laws.
Kunzinger Michael
Popovych Roman O.
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