Physics – Mathematical Physics
Scientific paper
2005-11-02
Physics
Mathematical Physics
8 pages, Proceedings of the International Conference on Difference Equations, Special Functions and Applications held in Munic
Scientific paper
We expand a discrete--time lattice sine--Gordon equation on multiple lattices
and obtain the partial difference equation which governs its far field
behaviour.
Such reduction allow us to obtain a new completely discrete nonlinear
Schr\"oedinger (NLS) type equation.
Ji Xiaoda
Levi Decio
Petrera Matteo
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