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  1. No Access

    Article

    Variability of Surface Air Temperature in Italy 1870–1980

    The trends and the fluctuations in variability of surface air temperature in Italy has been investigated by statistical analysis of historical data covering the recent 100 years. 27 stations were used for the...

    T. Nanni, G. Lo Vecchio, S. Cecchini in Theoretical and Applied Climatology (1998)

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    Article

    The atmospheric temperature in Italy during the last one hundred years and its relationships with solar output

    We analyze surface air temperature historical data with a principal focus on the last one hundred years and on the Italian territory. We find, using only statistical methods that this area can be divided in tw...

    G. Lo Vecchio, T. Nanni in Theoretical and Applied Climatology (1995)

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    Article

    Separability of completely integrable dynamical systems admitting alternative Lagrangian descriptions

    It is shown that whenever a (1, 1)-type tensor field, defined through two alternative Lagrangians, implies complete integrability for a second-order Lagrangian vector field Γ on the tangent bundle of a given c...

    C. Ferrario, G. Lo Vecchio, G. Marmo, G. Morandi in Letters in Mathematical Physics (1985)

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    Article

    On the pseudo nonintegrability of a Toda chain

    We have compared the behaviour of a nonintegrable Lennard-Jones system with that of an integrable Toda chain, by means a numerical evaluation of the maximal Ljapunov characteristic exponent χ. We have found fo...

    C. Ferrario, G. Lo Vecchio in Lettere al Nuovo Cimento (1971-1985) (1984)

  5. No Access

    Article

    A geometrical setting for the KAM theorem

    By using already established results on the geometrical characterization of completely-integrable systems, we propose a geometric version of the KAM (Kolmogorov-Arnol'd-Moser) theorem which may, in principle, ...

    C. Ferrario, G. Lo Vecchio, G. Marmo, G. Morandi in Lettere al Nuovo Cimento (1971-1985) (1983)

  6. No Access

    Article

    Spin glasses with RKKY-type interactions; numerical studies on small samples

    C. Bergonzoni, G. Lo Vecchio, G. Morandi in Lettere al Nuovo Cimento (1971-1985) (1983)

  7. No Access

    Article

    Spin glasses with RKKY-type interactions; numerical studies on small samples

    C. Bergonzoni, G. Lo Vecchio, G. Morandi in Lettere al Nuovo Cimento (1971-1985) (1983)

  8. No Access

    Article

    RPA response to a static point charge near a metal surface: Finite-barrier treatment

    G. Lo Vecchio, A. Magnaterra in Lettere al Nuovo Cimento (1971-1985) (1981)

  9. No Access

    Article

    Stochasticity thresholds in the Fermi-Pasta-Ulam model

    We consider the celebrated model of Fermi, Pasta and Ulam and give a numerical estimate for its thresholds of stochasticity, thus determining a critical energy as a function of the frequency of the correspondi...

    B. Callegari, M. C. Carotta, C. Ferrario, G. Lo Vecchio… in Il Nuovo Cimento B (1971-1996) (1979)

  10. No Access

    Article

    Stochasticity thresholds for systems of coupled oscillators

    We give a numerical estimate for the critical energy as a function of frequency, which describes the border of stochasticity for a system of coupled oscillators. The results are given for the model of a chain ...

    L. Galgani, G. Lo Vecchio in Il Nuovo Cimento B (1971-1996) (1979)

  11. No Access

    Article

    Impurity screening near a metal surface

    The linear response of a metal to an embedded charge impurity near the surface is treated within the random phase approximation. The surface is assumed to be perfectly reflecting, which allows the boundary val...

    D. E. Beck, V. Celli, G. Lo Vecchio, A. Magnaterra in Il Nuovo Cimento B (1965-1970) (1970)