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- W3202221167 abstract "In this work, we develop a novel method to obtain numerical solution of well-known Korteweg–de Vries (KdV) equation. In the novel method, we generate differentiation matrices for spatial derivatives of the KdV equation by using delta-shaped basis functions (DBFs). For temporal integration we use a high order geometric numerical integrator based on Lie group methods. This paper is a first attempt to combine DBFs and high order geometric numerical integrator for solving such a nonlinear partial differential equation (PDE) which preserves conservation laws. To demonstrate the performance of the proposed method we consider five test problems. We reckon [Formula: see text], [Formula: see text] and root mean square (RMS) errors and compare them with other results available in the literature. Besides the errors, we also monitor conservation laws of the KDV equation and we show that the method in this paper produces accurate results and preserves the conservation laws quite good. Numerical outcomes show that the present novel method is efficient and reliable for PDEs." @default.
- W3202221167 created "2021-10-11" @default.
- W3202221167 creator A5042774104 @default.
- W3202221167 creator A5056320921 @default.
- W3202221167 date "2021-09-29" @default.
- W3202221167 modified "2023-10-02" @default.
- W3202221167 title "A combination of Lie group-based high order geometric integrator and delta-shaped basis functions for solving Korteweg–de Vries (KdV) equation" @default.
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- W3202221167 doi "https://doi.org/10.1142/s0219887821502169" @default.
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