Semi-discrete Lagrangian 2-forms and the Toda hierarchy

We present a variational theory of integrable differential-difference equations (semi-discrete integrable systems). This is an extension of the ideas known by the names ‘Lagrangian multiforms’ and ‘Pluri-Lagrangian systems’, which have previously been established in both the fully discrete and fully...

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Bibliographic Details
Main Authors: Duncan Sleigh, Mats Vermeeren
Format: Default Article
Published: 2022
Subjects:
Mathematical sciences
Physical sciences
Lagrangian multiforms
Pluri-Lagrangian systems
differential-difference equations
integrable PDEs
Toda lattice
Online Access:https://hdl.handle.net/2134/22309378.v1
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