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Derivative-free high-order uniformly accurate schemes for highly-oscillatory systems

Abstract : In this paper, we address the computational aspects of uniformly accurate numerical methods for solving highly-oscillatory evolution equations. In particular, we introduce an approximation strategy that allows for the construction of arbitrary high-order methods using solely the right-hand side of the differential equation. No derivative of the vector field is required, while uniform accuracy is retained. The strategy is then applied to two different formulations of the problem, namely the two-scale and the micro-macro formulations. Numerical experiments on the Hénon-Heiles system, as well as on the Klein-Gordon equation and a Vlasov type problem all confirm the validity of the new strategy.
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Preprints, Working Papers, ...
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Contributor : Philippe Chartier Connect in order to contact the contributor
Submitted on : Monday, February 15, 2021 - 9:40:20 AM
Last modification on : Wednesday, January 26, 2022 - 5:42:33 PM
Long-term archiving on: : Sunday, May 16, 2021 - 6:28:15 PM


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  • HAL Id : hal-03141156, version 1


Philippe Chartier, Mohammed Lemou, Florian Méhats, Xiaofei Zhao. Derivative-free high-order uniformly accurate schemes for highly-oscillatory systems. 2021. ⟨hal-03141156⟩



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