Descripción
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The Euler-Lagrange equations of the natural basis of Lagrangian densities on the bundle of linear frames of a manifold M which are invariant under diffeomorphisms, are shown to be an underdetermined PDEs systems such that every hypersurface of M is characteristic for such equations. This explains why these systems cannot be written in the Cauchy-Kowaleska form, although they are known to be formally integrable by using the tools of geometric theory of partial di§erential equations, | |
Internacional
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Si |
ISSN o ISBN
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0000000000 |
Entidad relacionada
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ESF exploratory workshop on Current Problems in Differential Calculus over Commutative Algebras, Secondary Calculus, and Solution Singularities of Non-Linear PDEs |
Nacionalidad Entidad
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ITALIA |
Lugar del congreso
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Vietri sul Mare, Salerno, Italia |