Abstract
We give a detailed analysis of the convergence in Sobolev norm of the method of lines for the classical heat and wave equations on \(\mathbb {R }^n \) using non-stationary radial basis function interpolation on regular grids \(h \mathbb {Z }^n \) (scaled cardinal interpolation), for basis functions whose native space is a Sobolev space of order \(\nu / 2 \) with \(\nu > n + 2\).
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Acknowledgements
I would like to thank the anonymous referees for their comments and suggestions, in particular for pointing out that log-convexity of \(L^p \)-norms immediately provides \(L^p \)-estimates.
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Communicated by: Robert Schaback
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Brummelhuis, R. Convergence of non-stationary semi-discrete RBF schemes for the heat and wave equation. Adv Comput Math 49, 69 (2023). https://doi.org/10.1007/s10444-023-10058-8
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DOI: https://doi.org/10.1007/s10444-023-10058-8
Keywords
- Radial basis function interpolation
- Semi-discrete collocation schemes (method of lines)
- Rate of convergence