Positive and negative hierarchies of nonlinear integrable lattice models are derived from a discrete spectral problem. The two lattice hierarchies are proved to have discrete zero curvature representations associated with a discrete spectral problem, which also shows that the positive and negative h
On some integrable discrete-time systems associated with the Bogoyavlensky lattices
β Scribed by Vassilios G. Papageorgiou; Frank W. Nijhoff
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 900 KB
- Volume
- 228
- Category
- Article
- ISSN
- 0378-4371
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β¦ Synopsis
A new class of integrable lattice systems is introduced which are the time-discretisations of the Rogoyavlensky systems. Finite-dimensional reductions of these systems are considered that give rise to integrable mappings. Furthermore, the similarity reduction is shown to lead to higher-order q-difference generalisations of the discrete PainlevC I equation.
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