Lieb-Robinson Bounds for the Toda Lattice
  We establish locality estimates, known as Lieb-Robinson bounds, for the Toda lattice. In contrast to harmonic models, the Lieb-Robinson velocity for these systems do depend on the initial condition. Our results also apply to the entire Toda as well as the Kac-van Moerbeke hierarchy. Under suitable assumptions, our methods also yield a finite velocity for certain perturbations of these systems. 
Umar Islambekov, Robert Sims, Gerald Teschl
math-ph math.MP nlin.SI