The Using of Conservation Laws in Symmetry-Preserving Difference Scheme |
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Authors: | XIN Xiang-Peng CHEN Yong |
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Institution: | Shanghai Key Laboratory of Trustworthy Computing, East China Normal University, Shanghai 200062, China |
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Abstract: | In this paper, by means of the potential systems of the given nonlinear evolution equations, a procedure of symmetry preserving discretization of differential equations is presented. The specific process will be given detailed in section 2. This extended method is effective for discreting the high-order (high-dimensional) nonlinear evolution equations. As examples, the invariant difference models of the mKdV equation and the Boussinesq equation are constructed. |
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Keywords: | discretization symmetry-preserving potential systems Lie point symmetry |
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