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math.DG2005
Noether identities of a generic differential operator. The Koszul-Tate complex
G. Sardanashvily
Given a generic Lagrangian system, its Euler-Lagrange operator obeys Noether identities which need not be independent, but satisfy first-stage Noether identities, and so on. This c…
math.DG2005
The variational bicomplex on graded manifolds and its cohomology
G. Sardanashvily
Lagrangian formalism on graded manifolds is phrased in terms of the Grassmann-graded variational bicomplex, generalizing the familiar variational bicomplex for even Lagrangian syst…