Properties of Moyal-Lax Representation

Details Properties of Moyal-Lax Representation Properties of Moyal-Lax Representation

2001-03-09

arxiv.org/abs/hep-th/0103063v2

Phys.Lett.B510:264-270,2001

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, references added, version to be published in Phys. Letters B

Scientific paper

10.1016/S0370-2693(01)00561-5

The Moyal-Lax representation and the Moyal momentum algebra are introduced and systematically investigated. It is shown that the Moyal-Lax equation can be interpreted as a Hamiltonian equation and can be derived from an action. We show that the parameter of non-commutativity, in this case, is related to the central charge of the second Hamiltonian structure of the system. The Moyal-Lax description leads in a natural manner to the dispersionless limit and provides the second Hamiltonian structure of dispersionless integrable models, which has been an open question for sometime.

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