Positive definite maps on amenable groups
Operator Algebras
2022-02-02 v1 Group Theory
Abstract
We describe conditions that characterize amenability for groups in terms of positive definite functions valued in a von Neumann algebra.
Cite
@article{arxiv.2202.00597,
title = {Positive definite maps on amenable groups},
author = {Mikaël Pichot and Erik Séguin},
journal= {arXiv preprint arXiv:2202.00597},
year = {2022}
}