3 papers
cond-mat.stat-mech2004
Weak and strong chaos in FPU models and beyond
Marco Pettini, Lapo Casetti, Monica Cerruti-Sola +2
We briefly review some of the most relevant results that our group obtained in the past, while investigating the dynamics of the Fermi-Pasta-Ulam (FPU) models. A first result is th…
astro-ph2001
On the clustering phase transition in self-gravitating N-body systems
Monica Cerruti-Sola, Piero Cipriani, Marco Pettini
The thermodynamic behaviour of self-gravitating -body systems has been worked out by borrowing a standard method from Molecular Dynamics: the time averages of suitable quantitie…
chao-dyn1998
Lyapunov exponents from geodesic spread in configuration space
Monica Cerruti-Sola, Roberto Franzosi, Marco Pettini
The exact form of the Jacobi -- Levi-Civita (JLC) equation for geodesic spread is here explicitly worked out at arbitrary dimension for the configuration space manifold M_E = {q in…