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nlin.PS2007★ 40 cited
The Fermi-Pasta-Ulam problem: periodic orbits, normal forms and resonance overlap criteria
S. Flach, A. Ponno
Fermi, Pasta and Ulam observed, that the excitation of a low frequency normal mode in a nonlinear acoustic chain leads to localization in normal mode space on large time scales. Fa…
nlin.PS2004
Energy Localization in the Peyrard-Bishop DNA model
Jayme De Luca, Elso Drigo Filho, Antonio Ponno +1
We study energy localization on the oscillator-chain proposed by Peyrard and Bishop to model the DNA. We search numerically for conditions with initial energy in a small subgroup o…