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math.NA2020
On the relation of the spectral test to isotropic discrepancy and -approximation in Sobolev spaces
Mathias Sonnleitner, Friedrich Pillichshammer
This paper is a follow-up to the recent paper "A note on isotropic discrepancy and spectral test of lattice point sets" [J. Complexity, 58:101441, 2020]. We show that the isotropic…
math.NA2020★ 3 cited
Random points are optimal for the approximation of Sobolev functions
David Krieg, Mathias Sonnleitner
We show that independent and uniformly distributed sampling points are as good as optimal sampling points for the approximation of functions from the Sobolev space on bo…