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A simple Lagrangian for integrable systems
M. A. de Almeida da Silva, Ashok Das
Source abstract
A simple Lagrangian for integrable models that can describe the entire hierachy of equations associated with the system is proposed. In addition, the Lax equation, the recursion relation between the conserved quantities, as well as the vanishing of the Nijenhuis torsion tensor can also be derived from the system of equations following from this Lagrangian.
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