T. Ullrich

activity

20102026

most citedGeneralized coorbit space theory and inhomogeneous function spaces of Besov-Lizorkin-Triebel type

76 citations · 343 across the 42 of their papers we have counts for

collaborators

Showing 2023 · math.NAShow all

3 papers · 2 filters

math.NA2023

Efficient recovery of non-periodic multivariate functions from few scattered samples

Felix Bartel, Kai Lüttgen, Nicolas Nagel +1

It has been observed by several authors that well-known periodization strategies like tent or Chebychev transforms lead to remarkable results for the recovery of multivariate funct…

math.NA2023★ 3 cited

Sampling recovery in $L_{2}$ and other norms

David Krieg, Kateryna Pozharska, Mario Ullrich +1

We study the recovery of functions in various norms, including $L_{p}$ with $1 \leq p \leq \infty$ , based on function evaluations. We obtain worst case error bounds for general classes of…

math.NA2023★ 1 cited

Marcinkiewicz--Zygmund inequalities for scattered and random data on the $q$ -sphere

Frank Filbir, Ralf Hielscher, Thomas Jahn +1

The recovery of multivariate functions and estimating their integrals from finitely many samples is one of the central tasks in modern approximation theory. Marcinkiewicz--Zygmund…

Efficient recovery of non-periodic multivariate functions from few scattered samples

Sampling recovery in L2​ and other norms

Marcinkiewicz--Zygmund inequalities for scattered and random data on the q-sphere

Sampling recovery in $L_{2}$ and other norms

Marcinkiewicz--Zygmund inequalities for scattered and random data on the $q$ -sphere