Commuting Time Evolutions in the Tropical Periodic Toda Lattice
  The tropical (ultradiscrete) periodic Toda lattice is a dynamical system derived from a time-discretized version of the periodic Toda lattice through a limiting procedure called tropicalization. We propose a new formulation for this dynamical system with a representation by two-colored strips. Based on this formulation, a family of its commuting time evolutions is constructed. 
Taichiro Takagi
nlin.SI math-ph math.MP