Mario Ullrich

activity

20102023

most citedA sharp upper bound for sampling numbers in

L_{2}

53 citations · 640 across the 36 of their papers we have counts for

collaborators

Showing 2020Show all

1 paper · 1 filter

math.NA2020★ 22 cited

On the worst-case error of least squares algorithms for $L_{2}$ -approximation with high probability

Mario Ullrich

It was recently shown in [4] that, for $L_{2}$ -approximation of functions from a Hilbert space, function values are almost as powerful as arbitrary linear information, if the approxi…

On the worst-case error of least squares algorithms for L2​-approximation with high probability

On the worst-case error of least squares algorithms for $L_{2}$ -approximation with high probability