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

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math.FA2026

A sharp bound for sampling widths in the uniform norm: kernel $D$ -optimal designs and oversampling

Sebastian Neumayer, Tino Ullrich

For every reproducing kernel Hilbert space $H_{K}$ with bounded kernel $K$ , we prove that the linear sampling widths $g_{m}^{lin}$ and Gelfand widths $c_{n}$ in the unif…

math.NA2026

Greedy sampling designs via reduced basis methods: optimal recovery in the uniform norm

Sebastian Neumayer, Kateryna Pozharska, Tino Ullrich

We study optimal sampling recovery in reproducing kernel Hilbert spaces (RKHS) in the uniform norm. For every RKHS with bounded kernel, we establish new comparisons between linear…

A sharp bound for sampling widths in the uniform norm: kernel D-optimal designs and oversampling

Greedy sampling designs via reduced basis methods: optimal recovery in the uniform norm

A sharp bound for sampling widths in the uniform norm: kernel $D$ -optimal designs and oversampling