Bäcklund transformation, nonlinear superposition formula and solutions of the Calogero equation

2008 ◽  
Vol 372 (41) ◽  
pp. 6273-6279 ◽  
Author(s):  
Xuelin Yong ◽  
Zhiyong Zhang ◽  
Yufu Chen
2002 ◽  
Vol 44 (1) ◽  
pp. 121-128 ◽  
Author(s):  
Xing-Biao Hu ◽  
Johan Springael

AbstractA hierarchy of bilinear Lotka-Volterra equations with a unified structure is proposed. The bilinear Bäcklund transformation for this hierarchy and the corresponding canonical Lax pair are obtained. Furthermore, the nonlinear superposition formula is proved rigorously.


2016 ◽  
Vol 71 (5) ◽  
pp. 427-431 ◽  
Author(s):  
Xiaoxing Niu ◽  
Mengxia Zhang ◽  
Shuqiang Lv

AbstractA system proposed by Ito is reconsidered. The corresponding Darboux transformation is presented explicitly. The resulted Bäcklund transformation is shown to be equivalent to the one found by Hirota. Also, a nonlinear superposition formula, which is of differential-algebraic, is obtained.


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