Nonisospectral scattering problems and similarity reductions
نویسندگان
چکیده
We give mappings between hierarchies having nonisospectral scattering problems and hierarchies having isospectral scattering problems. Special cases of these changes of variables involve similarity variables, and similarity solutions of a hierarchy are seen to correspond to time-independent solutions of an equivalent hierarchy. We thus explain why the use of nonisospectral scattering problems and similarity reductions yield the same Painlevé hierarchies. As examples we consider the Korteweg–de Vries hierarchy and the dispersive water wave hierarchy. 2014 Elsevier Inc. All rights reserved.
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ورودعنوان ژورنال:
- Applied Mathematics and Computation
دوره 237 شماره
صفحات -
تاریخ انتشار 2014