Construction of a Lyapunov function and convergence to stationarity for a non-equilibrium chain of 4 rotators
Jean-Pierre Eckmann

This is work with Noe Cuneo. I plan to explain the model, which has
breather-like behavior (weak coupling) at high energies. The construction
of a Lyapunov function is based on an averaging technique by using
approximate inverses to the Liouville operator.