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nlin.SI2004
Quantum discrete Dubrovin equations
Chris M. Field, Frank W. Nijhoff
The discrete equations of motion for the quantum mappings of KdV type are given in terms of the Sklyanin variables (which are also known as quantum separated variables). Both tempo…
nlin.SI2004★ 7 cited
The Boussinesq integrable system. Compatible lattice and continuum structures
Anastasios Tongas, Frank Nijhoff
We consider the discrete Boussinesq integrable system and the compatible set of differential difference, and partial differential equations. The latter not only encode the complete…