Grandori Guagenti, Elisa:
Su di un invariante integrale dei continui hamiltoniani
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Serie 8 56 (1974), fasc. n.1, p. 65-71, (Italian)
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This paper deals with continuous mechanical systems, following hamiltonian formalism. It is shown that each continuous system has invariant integrals of the type of Poincaré's invariant integrals. Two examples are discussed: Thomson theorem in fluid dynamics is found again, then it is extended to magnetofluid dynamics.
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