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- W4287674144 abstract "In order to solve Prandtl-type equations we propose a collocation-quadrature method based on VP filtered interpolation at Chebyshev nodes. Uniform convergence and stability are proved in a couple of Holder - Zygmund spaces of locally continuous functions. With respect to classical methods based on Lagrange interpolation at the same collocation nodes, we succeed in reproducing the optimal convergence rates of the L2 case by cutting off the typical log factor which seemed inevitable dealing with uniform norms. Such an improvement does not require a greater computational effort. In particular we propose a fast algorithm based on the solution of a simple 2-bandwidth linear system and prove that, as its dimension tends to infinity, the sequence of the condition numbers (in any natural matrix norm) tends to a finite limit." @default.
- W4287674144 created "2022-07-25" @default.
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- W4287674144 date "2020-09-02" @default.
- W4287674144 modified "2023-10-16" @default.
- W4287674144 title "Filtered interpolation for solving Prandtl's integro-differential equations" @default.
- W4287674144 doi "https://doi.org/10.48550/arxiv.2009.01290" @default.
- W4287674144 hasPublicationYear "2020" @default.
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