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arXiv · 1505.01024

Construction of Type-II Backlund Transformation for the mKdV Hierarchy

J. F. Gomes·A. L. Retore·A. H. Zimerman
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Abstract

From an algebraic construction of the mKdV hierarchy we observe that the space component of the Lax operator play a role of an universal algebraic object. This fact induces the universality of a gauge transformation that relates two field configurations of a given member of the hierarchy. Such gauge transformation generates the Backlund transformation (BT). In this paper we propose a systematic construction of Backlund Transformation for the entire mKdV hierarchy form the known Type-II BT of the sinh-Gordon theory. We explicitly construct the BT of the first few integrable models associated to positive and negative grade-time evolutions. Solutions of these transformations for several cases describing the transition from vacuum-vacuum and the vacuum to one-soliton solutions which determines the value for the auxiliary field and the the Backlund parameter respectively, independently of the model. The same follows for the scattering of two one-soliton solutions. The resultant delay is determined by a condition independent of the model considered.

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J. F. Gomes, A. L. Retore, A. H. Zimerman. 2015-05-05. Construction of Type-II Backlund Transformation for the mKdV Hierarchy. https://doi.org/10.1088/1751-8113/48/40/405203

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