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Numerical calculation of N -periodic wave solutions to coupled KdV–Toda-type equations
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences ( IF 3.5 ) Pub Date : 2021-01-13 , DOI: 10.1098/rspa.2020.0752
Yingnan Zhang 1 , Xingbiao Hu 2, 3 , Jianqing Sun 4
Affiliation  

In this paper, we study the N-periodic wave solutions of coupled Korteweg–de Vries (KdV)–Toda-type equations. We present a numerical process to calculate the N-periodic waves based on the direct method of calculating periodic wave solutions proposed by Akira Nakamura. Particularly, in the case of N = 3, we give some detailed examples to show the N-periodic wave solutions to the coupled Ramani equation, the Hirota–Satsuma coupled KdV equation, the coupled Ito equation, the Blaszak–Marciniak lattice, the semi-discrete KdV equation, the Leznov lattice and a relativistic Toda lattice.

中文翻译:

耦合KdV-Toda型方程的N周期波解的数值计算

在本文中,我们研究耦合 Korteweg-de Vries (KdV)-Toda 型方程的 N 周期波解。我们基于 Akira Nakamura 提出的计算周期波解的直接方法,提出了一个计算 N 周期波的数值过程。特别是在 N = 3 的情况下,我们给出了一些详细的例子来说明耦合 Ramani 方程、Hirota-Satsuma 耦合 KdV 方程、耦合 Ito 方程、Blaszak-Marciniak 点阵、半-离散 KdV 方程、Leznov 格和相对论 Toda 格。
更新日期:2021-01-13
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