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arXiv 1207.5347nlin.SImath-phmath.MP
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关于Degasperis-Procesi方程的τ-函数

On the tau-functions of the Degasperis-Procesi equation

Bao-Feng Feng, Ken-ichi Maruno, Yasuhiro Ohta

摘要:

本文从行列式恒等式的角度研究DP方程。利用Degasperis-Procesi(DP)方程与$C_{\infty}$二维Toda系统的伪3-约化之间的相互联系构造DP方程的N-孤子解.通过速度图(倒数)变换,DP方程的N-孤子解以pf形式给出。通过对$C_{\infty}$二维Toda系统的伪3-约化,得到了DP方程的双线性方程、行列式与行列式之间的恒等式以及$τ$ -函数.

英文摘要:

The DP equation is investigated from the point of view of determinant-pfaffian identities. The reciprocal link between the Degasperis-Procesi (DP) equation and the pseudo 3-reduction of the $C_{\infty}$ two-dimensional Toda system is used to construct the N-soliton solution of the DP equation. The N-soliton solution of the DP equation is presented in the form of pfaffian through a hodograph (reciprocal) transformation. The bilinear equations, the identities between determinants and pfaffians, and the $τ$-functions of the DP equation are obtained from the pseudo 3-reduction of the $C_{\infty}$ two-dimensional Toda system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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