The Nonlinear Evolution Equations Related to the Wadati-Konno-Ichikawa Spectral Problem
The Nonlinear Evolution Equations Related to the Wadati-Konno-Ichikawa Spectral Problem
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DOI:
10.1143/ptp.69.48
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发表时间:
1983
影响因子:
--
通讯作者:
M. Boiti;F. Pempinelli;G. Tu
中科院分区:
文献类型:
--
作者:
M. Boiti;F. Pempinelli;G. Tu
The Wadati-Konno-Ichikawa (WKI) spectral problem is considered and the nonlinear evolution equations (NLEE) related to this problem are explicitly constructed. Together with the integrable NLEE already found by WKI new pure differential solvable NLEEs are derived. The properties of the integro-differential operatorLgenerating all the considered NLEEs are studied. It is shown that the usually successful procedure used to derive the Bäcklund transformation does not work with these highly nonlinear evolution equations.