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Spectral sequences and the inverse problem of the calculus of variations. (English) Zbl 0482.49027

Differential geometrical methods in mathematical physics, Proc. Conf. Aix-en-Provence and Salamanca 1979, Lect. Notes Math. 836, 498-503 (1980).

MSC:

49Q99 Manifolds and measure-geometric topics
35R30 Inverse problems for PDEs
55T05 General theory of spectral sequences in algebraic topology
58A20 Jets in global analysis
58A15 Exterior differential systems (Cartan theory)