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• W4386542013 abstract "In this paper, we propose two momentum-preserving finite difference schemes for solving one-dimensional Camassa–Holm equation with periodic boundary conditions. A two-level nonlinear difference scheme and a three-level linearized difference scheme are constructed by using the method of order reduction. For nonlinear scheme, we combine mid-point rule and a specific difference operator, which ensures that our obtained scheme is of second-order convergence in both temporal and spatial directions. For linearized scheme, we apply a linear implicit Crank–Nicolson scheme in the temporal direction, then unique solvability and momentum conservation are analysed in detail. Numerical experiments are provided for Camassa–Holm equation admitting different types of solutions, which demonstrate the convergence order and accuracy of the proposed methods coincide with theoretical analysis. Moreover, numerical results show that the nonlinear scheme exhibits better accuracy for mass conservation, while the linearized scheme is more time-saving in computation." @default.
• W4386542013 created "2023-09-09" @default.
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• W4386542013 date "2023-09-08" @default.
• W4386542013 modified "2023-09-26" @default.
• W4386542013 title "Conservative second-order finite difference method for Camassa–Holm equation with periodic boundary condition" @default.
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• W4386542013 doi "https://doi.org/10.1080/00207160.2023.2254413" @default.
• W4386542013 hasPublicationYear "2023" @default.
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