N. Laustsen

activity

19972026

most citedUniqueness of the maximal ideal of the Banach algebra of bounded operators on

C ([0, ω_{1}])

18 citations · 57 across the 25 of their papers we have counts for

collaborators

Showing 2025 · math.FAShow all

3 papers · 2 filters

math.FA2025

Strictly singular operators on the Baernstein and Schreier spaces

Niels Jakob Laustsen, James Smith, JamesSmith

Every composition of two strictly singular operators is compact on the Baernstein space $B_{p}$ for $1 < p < \infty$ and on the $p$ -convexified Schreier space $S_{p}$ for $1 \leq p <…

math.FA2025

Compactness of compositions of strictly singular operators on direct sums of Baernstein, Schreier and $ℓ_{p}$ -spaces

Niels Jakob Laustsen, Henrik Wirzenius

Let $X$ be the direct sum of finitely many Banach spaces chosen from the following three families: (i) the Baernstein spaces $B_{p}$ for $1 < p < \infty$ ; (ii) the $p$ -convexified Schrei…

math.FA2025

Kernels of Bounded Operators on the Classical Transfinite Banach Sequence Spaces

Max Arnott, Niels Jakob Laustsen

Every closed subspace of each of the Banach spaces $X = ℓ_{p} (Γ)$ and $X = c_{0} (Γ)$ , where $Γ$ is a set and $1 < p < \infty$ , is the kernel of a bounded operator $X \to X$ . On the other h…

Strictly singular operators on the Baernstein and Schreier spaces

Compactness of compositions of strictly singular operators on direct sums of Baernstein, Schreier and ℓp​-spaces

Kernels of Bounded Operators on the Classical Transfinite Banach Sequence Spaces

Compactness of compositions of strictly singular operators on direct sums of Baernstein, Schreier and $ℓ_{p}$ -spaces