Dirk Werner

activity

19932023

most citedNumerical index and duality

51 citations · 118 across the 25 of their papers we have counts for

collaborators

Showing 1997 · math.FAShow all

2 papers · 2 filters

math.FA1997★ 1 cited

Banach spaces with the Daugavet property

Vladimir Kadets, Roman Shvidkoy, Gleb Sirotkin +1

A Banach space $X$ is said to have the Daugavet property if every operator $T : X \to X$ of rank~ $1$ satisfies $∥ I d + T ∥ = 1 + ∥ T ∥$ . We show that then every weakly compact operator s…

math.FA1997

M-ideals of compact operators into $ℓ_{p}$

Kamil John, Dirk Werner

We show for $2 \leq p < \infty$ and subspaces $X$ of quotients of $L_{p}$ with a $1$ -unconditional finite-dimensional Schauder decomposition that $K (X, ℓ_{p})$ is an $M$ -ideal in $L(…

Banach spaces with the Daugavet property

M-ideals of compact operators into ℓp​

M-ideals of compact operators into $ℓ_{p}$