Singularities of the discrete KdV equation and the Laurent property
Singularities of the discrete KdV equation and the Laurent property
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离散 KdV 方程的奇异性和洛朗性质
DOI:
10.1088/1751-8113/47/6/065201
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Masataka
中科院分区:
文献类型:
--
作者:
KANKI;Masataka
We study the distribution of singularities for partial difference equations, in particular, the bilinear and nonlinear form of the discrete version of the Korteweg–de Vries (dKdV) equation. Using the Laurent property, and the irreducibility, and co-primeness of the terms of the bilinear dKdV equation, we clarify the relationship of these properties with the appearance of zeros in the time evolution. The results are applied to the nonlinear dKdV equation and we formulate the famous integrability criterion (singularity confinement test) for nonlinear partial difference equations with respect to the co-primeness of the terms.
影响因子:
2.4
作者:
H. Sakai
通讯作者:
H. Sakai
影响因子:
2.6
作者:
A. Ramani;B. Grammaticos;J. Satsuma
通讯作者:
J. Satsuma