Henrik Wirzenius

collaborators

2 papers

math.FA2025

Structure of closed subideals of $L (X)$

Hans-Olav Tylli, Henrik Wirzenius

The closed subalgebra $J$ of the Banach algebra $L (X)$ of bounded linear operators on the Banach space $X$ is a non-trivial closed $I$ -subideal of $\math…

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…

Structure of closed subideals of L(X)

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

Structure of closed subideals of $L (X)$

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