Ami Viselter

activity

20162026

collaborators

6 papers

math.OA2026

Amenability of locally compact quantum groups via the long-time behavior of convolution semigroups

Ami Viselter

We establish a simple characterization of amenability of second countable locally compact quantum groups $G$ in terms of the long-time behavior of convolution semigroups o…

math.OA2023

Convolution semigroups on Rieffel deformations of locally compact quantum groups

Adam Skalski, Ami Viselter

Consider a locally compact quantum group $G$ with a closed classical abelian subgroup $Γ$ equipped with a $2$ -cocycle $Ψ : Γ^\times Γ^\to C$ . We study in detail…

math.OA2019

Actions, quotients and lattices of locally compact quantum groups

Michael Brannan, Alexandru Chirvasitu, Ami Viselter

We prove a number of property (T) permanence results for locally compact quantum groups under exact sequences and the presence of invariant states, analogous to their classical ver…

math.OA2019

Generating functionals for locally compact quantum groups

Adam Skalski, Ami Viselter

Every symmetric generating functional of a convolution semigroup of states on a locally compact quantum group is shown to admit a dense unital $*$ -subalgebra with core-like propert…

math.OA2017

Convolution semigroups on locally compact quantum groups and noncommutative Dirichlet forms

Adam Skalski, Ami Viselter

The subject of this paper is the study of convolution semigroups of states on a locally compact quantum group, generalising classical families of distributions of a Lévy process on…

math.OA2016

Amenability of locally compact quantum groups and their unitary co-representations

Chi-Keung Ng, Ami Viselter

We prove that amenability of a unitary co-representation $U$ of a locally compact quantum group passes to unitary co-representations that weakly contain $U$ . This generalizes a res…