(2+1)-dimensional integrable lattice hierarchies related to discrete fourth-order nonisospectral problems

(2+1)-dimensional integrable lattice hierarchies related to discrete fourth-order nonisospectral problems
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(2 1)维可积晶格层次与离散四阶非等谱问题相关

DOI:
10.1088/1751-8113/40/43/012
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发表时间:
2007-10
影响因子:
2.1
通讯作者:
Tam, Hon-Wah
Tam, Hon-Wah
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhu, Zuo-Nong;Tam, Hon-Wah

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本文考虑(2+1)维离散四阶非等谱问题。利用Lax技巧,构造了三个新的(2+1)维非等谱四维可积格族.由于Mlaszak-Marciniak,它们的约化产生了三个(1+1)维等谱四场可积格族.我们对(1+1)维离散四阶非等谱问题和三阶非等谱问题进行了比较。我们发现与离散四阶非等谱问题相关的可积格族具有新的特征。
In this paper, we consider the (2+1)-dimensional discrete fourth-order nonisospectral problem. By using the Lax technique, three new (2+1)-dimensional nonisospectral four-field integrable lattice hierarchies are constructed. Their reductions yield three (1+1)-dimensional isospectral four-field integrable lattice hierarchies due to Mlaszak–Marciniak. We make a comparison between the (1+1)-dimensional discrete fourth-order nonisospectral problem and the third-order nonisospectral problem. We found that the integrable lattice hierarchies related to the discrete fourth-order nonisospectral problem have new characteristics.
DOI: 10.1088/0305-4470/12/7/003
发表时间: 1979-07
期刊: Journal of Physics A
影响因子: --
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