Abstract
We establish the long-time stability of low-energy solitary waves in one-dimensional nonintegrable lattices with Hamiltonian H = Σ j∈ℤ (1/2pj2 + V (qj+1 - qj)) with a general nearest-neighbour potential V. As a corollary we obtain a recurrence theorem related to numerical observations by Fermi, Pasta and Ulam.
Original language | English |
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Pages (from-to) | 229-251 |
Number of pages | 23 |
Journal | Nonlinearity |
Volume | 17 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2004 |
Externally published | Yes |