Mario Ullrich

activity

20122026

most citedRapid mixing of Swendsen-Wang dynamics in two dimensions

20 citations · 51 across the 12 of their papers we have counts for

collaborators

Showing 2024 · math.FAShow all

2 papers · 2 filters

math.FA2024★ 3 cited

Inequalities between s-numbers

Mario Ullrich

Singular numbers of operators between Hilbert spaces were generalized to Banach spaces by s-numbers (in the sense of Pietsch). This allows for different choices, including approxim…

math.FA2024★ 8 cited

Sampling projections in the uniform norm

David Krieg, Kateryna Pozharska, Mario Ullrich +1

We show that there are sampling projections on arbitrary $n$ -dimensional subspaces of $B (D)$ with at most $2 n$ samples and norm of order $n$ , where $B (D)$ is the space of co…