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

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Hongwu Tang; Mingyan Xing; Qihuai Liu; Guirong Jiang;

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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