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A new conservation theorem
Ansvarlig organisasjon
2007 (engelsk)Inngår i: Journal of Mathematical Analysis and Applications, ISSN 0022-247X, E-ISSN 1096-0813, Vol. 333, nr 1, s. 311-328Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A general theorem on conservation laws for arbitrary differential equations is proved. The theorem is valid also for any system of differential equations where the number of equations is equal to the number of dependent variables. The new theorem does not require existence of a Lagrangian and is based on a concept of an adjoint equation for non-linear equations suggested recently by the author. It is proved that the adjoint equation inherits all symmetries of the original equation. Accordingly, one can associate a conservation law with any group of Lie, Lie-Backlund or non-local symmetries and find conservation laws for differential equations without classical Lagrangians.

sted, utgiver, år, opplag, sider
Academic Press , 2007. Vol. 333, nr 1, s. 311-328
Emneord [en]
conservation laws
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-8991ISI: 000247325900022Lokal ID: oai:bth.se:forskinfo9969A2C930071627C125733E0049DDB9OAI: oai:DiVA.org:bth-8991DiVA, id: diva2:836767
Tilgjengelig fra: 2012-09-18 Laget: 2007-08-21 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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