A high order fully discrete scheme for the Korteweg-de vries equation with a time-stepping procedure of Runge-Kutta-composition type

05/26/2020 ∙ by Vassilios A. Dougalis, et al. ∙ 0

We consider the periodic initial-value problem for the Korteweg-de Vries equation that we discretize in space by a spectral Fourier-Galerkin method and in time by an implicit, high order, Runge-Kutta scheme of composition type based on the implicit midpoint rule. We prove L^2 error estimates for the resulting semidiscrete and the fully discrete approximations.

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