Cnoidal Waves on Fermi-Pasta-Ulam Lattices

Gero Friesecke, Alice Mikikits-Leitner

We study a chain of infinitely many particles coupled by nonlinear springs, obeying the equations of motion [\ddot{q}_n = V'(q_{n+1}-q_n) - V'(q_n-q_{n-1})] with generic nearest-ne…