Charles Duquet

collaborators

2 papers

math.OA2025

Absolute dilations of ucp self-adjoint Fourier multipliers: the non unimodular case

Charles Duquet, Christian Le Merdy

Let $I ¨ $ be a normal semi-finite faithful weight on a von Neumann algebra $A$ ,let $(I ¨ ^{I ¨} _{r})_{r \in R}$ denote the modular automorphism group of $I ¨ $ , and let $T\colon A\to…

math.OA2025

A characterization of absolutely dilatable Schur multipliers

Charles Duquet, Christian Le Merdy

Let $M$ be a von Neumann algebra equipped with a normal semi-finite faithful trace (nsf trace in short) and let $T : M \to M$ be a contraction. We say that $T$ is absolutely dil…