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The interaction of waves in the Fermi–Pasta–Ulam model
Communications in Nonlinear Science and Numerical Simulation ( IF 3.9 ) Pub Date : 2020-07-05 , DOI: 10.1016/j.cnsns.2020.105436
S. Kashchenko

Using asymptotic methods we investigate a local in a steady state neighbourhood behavior of solutions in the Fermi–Pasta–Ulam model. Basing on the formalism of the normalization method we got special nonlinear evolution equations. The dynamics of these equations substantially defines the behavior of solutions of original equations. We made the conclusions about the interaction of waves moving in different directions.



中文翻译:

费米-帕斯塔-乌拉姆模型中的波相互作用

使用渐近方法,我们研究了费米-帕斯塔-乌拉姆模型中一个处于稳态的局部邻域行为。在归一化方法的形式主义的基础上,我们得到了特殊的非线性演化方程。这些方程的动力学实质上定义了原始方程解的行为。我们得出了关于在不同方向上移动的波的相互作用的结论。

更新日期:2020-07-05
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