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Journal Article

Burgers and Kadomtsev-Petviashvili hierarchies: A functional representation approach

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Müller-Hoissen,  Folkert
Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Dimakis, A., & Müller-Hoissen, F. (2007). Burgers and Kadomtsev-Petviashvili hierarchies: A functional representation approach. Theoretical and Mathematical Physics, 152(1), 933-947.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-140F-F
Abstract
Functional representations of (matrix) Burgers and potential KP (pKP) hierarchies (and others), as well as some corresponding Bäcklund transformations, can be obtained surprisingly simply from a "discrete" functional zero curvature equation. We use these representations to show that any solution of a Burgers hierarchy is also a solution of the pKP hierarchy. Moreover, the pKP hierarchy can be expressed in the form of an inhomogeneous Burgers hierarchy. In particular, this leads to an extension of the Cole-Hopf transformation to the pKP hierarchy. Furthermore, these hierarchies are solved by the solutions of certain functional Riccati equations.