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Kac-Moody-Virasoro symmetries and related conservation laws

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Abstract

In this report, some important facts on the symmetries and conservation laws of high dimensional integrable systems are discussed. It is summarized that almost all the known (2+1)-dimensional integrable models possess the Kac-Moody-Virasoro (KMV) symmetry algebras. One knows that infinitely many partial differential equations may possess a same KMV symmetry algebra. It is found that the KMV symmetry groups can be explicitly obtained by using some direct methods. For some quite general variable coefficient nonlinear systems, their sufficient and necessary condition for the existence of the KMV symmetry algebra is they can be changed to the related known constant coefficient models. Finally, it is found that every one symmetry may be related to infinitely many conservation laws and then infinitely many models may possess a same set of infinitely many conservation laws.

Original languageEnglish
Title of host publicationNonlinear and Modern Mathematical Physics - Proceedings of the First International Workshop
Pages136-145
Number of pages10
DOIs
StatePublished - 2010
Externally publishedYes
Event1st International Workshop on Nonlinear and Modern Mathematical Physics - Beijing, China
Duration: 15 Jul 200921 Jul 2009

Publication series

NameAIP Conference Proceedings
Volume1212
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Workshop on Nonlinear and Modern Mathematical Physics
Country/TerritoryChina
CityBeijing
Period15/07/0921/07/09

Keywords

  • Conservation laws
  • KP equation
  • Kac-Moody-Virasoro symmeries

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