5 citations · 9 across the 2 of their papers we have counts for
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nlin.SI2008★ 5 cited
Global action-angle variables for the periodic Toda lattice
Andreas Henrici, Thomas Kappeler
In this paper we construct global action-angle variables for the periodic Toda lattice.
nlin.SI2007★ 4 cited
Resonant normal form for even periodic FPU chains
Andreas Henrici, Thomas Kappeler
In this paper we investigate periodic FPU chains with an even number of particles. We show that near the equilibrium point, any such chain admits a \emph{resonant} Birkhoff normal…
nlin.SI2006
Normal form for odd periodic FPU chains
Andreas Henrici, Thomas Kappeler
In this paper we prove that near the equilibirum position any periodic FPU chain with an odd number of particles admits a Birkhoff normal form up to order 4, and we obtain an expli…