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- W2110154295 abstract "SUMMARY The work concerns cnoidal and solitary wave solutions of the Boussinesq equations in the context of finite difference methods. The existence of permanent wave-forms is discussed and approximate solutions are found for one particular discrete formulation by perturbation techniques. These techniques can be applied to most difference and regular element discretizations of equations describing weakly non-linear and dispersive waves. No proof of convergence of the perturbation expansions is established, but the appropriateness of the solutions is confirmed through comparison with the results of computer simulations. From the perturbation series it is found that the phase speed of solitons is useless for the evaluation of numerical methods and that asymmetries in the discrete equations may ruin the soliton solution. The availability of a discrete closedform solution is especially important for discussions concerning the existence and accuracy of permanent wave-forms with oblique orientations relative to the grid." @default.
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- W2110154295 date "1991-09-20" @default.
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- W2110154295 title "Finite difference representations of non-linear waves" @default.
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- W2110154295 doi "https://doi.org/10.1002/fld.1650130602" @default.
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