31 research outputs found

    Lie point symmetries and first integrals: the Kowalevsky top

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    We show how the Lie group analysis method can be used in order to obtain first integrals of any system of ordinary differential equations. The method of reduction/increase of order developed by Nucci (J. Math. Phys. 37, 1772-1775 (1996)) is essential. Noether's theorem is neither necessary nor considered. The most striking example we present is the relationship between Lie group analysis and the famous first integral of the Kowalevski top.Comment: 23 page

    La tipicit\ue0 dei diritti reali

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    Rivendica e probatio diabolica

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    Astrazione causale e contratto autonomo di garanzia

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    Viene trattato il problema della causalit\ue0 con riguardo alla fattispecie, di creazione sociale e giurisprudenziale, del contratto autonomo di garanzi
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