Q3的孤子解
Soliton solutions for Q3
摘要:
我们构造了最近Adler-Bobenko-Suris分类中称为Q3的方程的N-孤子解。构造中的一个基本成分是$(Q3)_{δ=0}$与Nijhoff、Quispel和Capel在1983年提出的方程(NQC方程)的关系。后一个方程有两个额外的参数,根据它们的符号选择,我们得到从NQC到$(Q3)_{δ=0}$的4比1关系。这导致一个四项的背景解决方案,然后到1-孤子的解决方案,使用Backlund变换。利用1 SS作为指导,我们可以得到N孤子解的Hirota-Miwa方程的τ函数。
英文摘要:
We construct N-soliton solutions to the equation called Q3 in the recent Adler-Bobenko-Suris classification. An essential ingredient in the construction is the relationship of $(Q3)_{δ=0}$ to the equation proposed by Nijhoff, Quispel and Capel in 1983 (the NQC equation). This latter equation has two extra parameters, and depending on their sign choices we get a 4-to-1 relationship from NQC to $(Q3)_{δ=0}$. This leads to a four-term background solution, and then to a 1-soliton solution using a Backlund transformation. Using the 1SS as a guide allows us to get the N-soliton solution in terms of the tau-function of the Hirota-Miwa equation.
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