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arxiv: math-ph/0511006 · v1 · pith:GKPTTNOXnew · submitted 2005-11-02 · 🧮 math-ph · math.MP

Multiscale expansion of the lattice sine--Gordon equation

classification 🧮 math-ph math.MP
keywords equationlatticeobtainsine--gordonallowbehaviourcompletelydifference
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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.

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