On the (modified) Kadomtsev-Petviashvili hierarchy


We present a novel approach to the Kadomtsev-Petviashvili (KP) hierarchy and its modified counterpart, the mKP hierarchy based on factorizations of formal pseudodifferential operators and a matrix-valued Lax operator for the mKP hierarchy. As a result of this framework we obtain new Bäcklund transformations for the KP hierarchy and the possibility of transferring classes of KP solutions into those of mKP solutions, and vice versa. As an application of our techniques we provide a new derivation of soliton solutions of the KP and mKP equation. © 1995, Khayyam Publishing.

Publication Title

Differential and Integral Equations

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