Cédric Arhancet

activity

20182020

collaborators

4 papers

math.OA2020

A characterization of completely bounded normal Jordan $*$ -homomorphisms on von Neumann algebras

Cédric Arhancet

We characterize completely bounded normal Jordan $*$ -homomorphisms acting on von Neumann algebras. We also characterize completely positive isometries acting on noncommutative $\ma…

math.OA2019

Riesz transforms, Hodge-Dirac operators and functional calculus for multipliers I

Cédric Arhancet, Christoph Kriegler

In this work, we solve the problem explicitly stated at the end of a paper of Junge, Mei and Parcet [JEMS2018, Problem C.5] for a large class of groups including all amenable group…

math.FA2018

On analyticity of semigroups on Bochner spaces and on vector-valued noncommutative $L^{p}$ -spaces

Cédric Arhancet

We show that the analyticity of semigroups $(T_{t})_{t \geq 0}$ of (not necessarily positive) selfadjoint contractive Fourier multipliers on $L^{p}$ -spaces of any abelian loca…

math.FA2018

Complementation of the subspace of radial multipliers in the space of Fourier multipliers on $R^{n}$

Cédric Arhancet, Christoph Kriegler

In this short note, we prove that the subspace of radial multipliers is contractively complemented in the space of Fourier multipliers on the Bochner space $\mathrm{L}^p(\mathbb{R}…

A characterization of completely bounded normal Jordan ∗-homomorphisms on von Neumann algebras

Riesz transforms, Hodge-Dirac operators and functional calculus for multipliers I

On analyticity of semigroups on Bochner spaces and on vector-valued noncommutative Lp-spaces

Complementation of the subspace of radial multipliers in the space of Fourier multipliers on Rn

A characterization of completely bounded normal Jordan $*$ -homomorphisms on von Neumann algebras

On analyticity of semigroups on Bochner spaces and on vector-valued noncommutative $L^{p}$ -spaces

Complementation of the subspace of radial multipliers in the space of Fourier multipliers on $R^{n}$