Contact transformations for difference schemes

Details Contact transformations for difference schemes Contact transformations for difference schemes

2011-10-15

arxiv.org/abs/1110.3409v1

Physics

Mathematical Physics

Scientific paper

We define a class of transformations of the dependent and independent variables in an ordinary difference scheme. The transformations leave the solution set of the system invariant and reduces to a group of contact transformations in the continuous limit. We use a simple example to show that the class is not empty and that such "contact transformations for discrete systems" genuinely exist.

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