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The relationship between the conservation laws and multi-Hamiltonian structures of the Kundu equation
  • Jian-bing Zhang,
  • Yingyin Gongye,
  • Wen-Xiu, Ma
Jian-bing Zhang
Jiangsu Normal University
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Yingyin Gongye
Jiangsu Normal University
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Wen-Xiu, Ma
University of South Florida
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By the Lagrangian multiplier and constraint variational derivative, a relationship between conserved quantities and multi-Hamiltonian structures is built. Making using the relation a method is founded to prove the infinite-dimensional Liouville integrability of evolution equations with continuous variables. As the application, the conservation laws of the Kundu equation are firstly obtained. Its conserved quantities are deduced for comparing by Fokas' method different from the method used in the existed literature. The integrability of the equation is proved through taking the conservation laws as a starting point.

Peer review status:UNDER REVIEW

11 Oct 2020Submitted to Mathematical Methods in the Applied Sciences
12 Oct 2020Assigned to Editor
12 Oct 2020Submission Checks Completed
05 Nov 2020Reviewer(s) Assigned