Toda Lattice
Conserved quantities (Lax):
H = —
I₂ = —
I₃ = —
Eigenvalues of L stable ✓
Toda lattice: Hₙ = Σ pₙ²/2 + e^(qₙ-qₙ₊₁). Integrable via Lax pair L,M: dL/dt = [M,L]. Eigenvalues of L = conserved quantities. Soliton-like pulses scatter elastically.