On the Periodic Orbits of Four-Particle Time-Dependent FPU Chains

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Tang, Hongwu; Xing, Mingyan; Liu, Qihuai; Jiang, Guirong;
  • Publisher: Hindawi
  • Journal: Advances in Mathematical Physics (issn: 1687-9120, eissn: 1687-9139)
  • Related identifiers: doi: 10.1155/2018/4526917
  • Subject: Physics | QC1-999 | Article Subject

We study the existence of the periodic orbits for four-particle time-dependent FPU chains. To begin with, taking an orthogonal transformation and dropping two variables, we put the system into a lower dimensional system. In this case, the unperturbed system has the line... View more
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