Bernhard H. Haak

activity

20122023

most citedThe Weiss conjecture and weak norms

8 citations · 8 across the 3 of their papers we have counts for

collaborators

3 papers

math.FA2023

Remarks on Ritt operators, their $H^{\infty}$ functional calculus and associated square function estimates

Bernhard H. Haak

This note deals with the boundedness of the $H^{\infty}$ functional calculus of Ritt operators $T$ and associated square function estimates. The purpose is to give a shorter, concise…

math.FA2014

Sur quelques extensions au cadre Banachique de la notion d'opérateur de Hilbert-Schmidt

Said Amana Abdillah, Jean Esterle, Bernhard Hermann Haak

In this work we discuss several ways to extend to the context of Banach spaces the notion of Hilbert-Schmidt operators: $p$ -summing operators, $γ$ -summing or $γ$ -radonifying operat…

math.OC2012★ 8 cited

The Weiss conjecture and weak norms

Bernhard Hermann Haak

In this note we show that for analytic semigroups the so-called Weiss condition of uniform boundedness of the operators $Re(λ)^\einhalb C(λ+A)^{-1}, \qquad Re(λ)>0$ on the complex…

Remarks on Ritt operators, their H∞ functional calculus and associated square function estimates

Sur quelques extensions au cadre Banachique de la notion d'opérateur de Hilbert-Schmidt

The Weiss conjecture and weak norms

Remarks on Ritt operators, their $H^{\infty}$ functional calculus and associated square function estimates