High–low frequency interaction in alternating FPU α-chains
نویسندگان
چکیده
منابع مشابه
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The symmetry and resonance properties of the Fermi Pasta Ulam chain with periodic boundary conditions are exploited to construct a near-identity transformation bringing this Hamiltonian system into a particularly simple form. This ‘Birkhoff-Gustavson normal form’ retains the symmetries of the original system and we show that in most cases this allows us to view the periodic FPU Hamiltonian as a...
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ژورنال
عنوان ژورنال: International Journal of Non-Linear Mechanics
سال: 2021
ISSN: 0020-7462
DOI: 10.1016/j.ijnonlinmec.2021.103686