Christopher Ramsey

activity

20102025

most citedThe isomorphism problem for some universal operator algebras

68 citations · 81 across the 10 of their papers we have counts for

collaborators

Showing 2017 · math.OAShow all

3 papers · 2 filters

math.OA2017

Crossed products of operator algebras: applications of Takai duality

Elias Katsoulis, Christopher Ramsey

Let $(G, Σ)$ be an ordered abelian group with Haar measure $μ$ , let $(A, G, α)$ be a dynamical system and let $A ⋊_{α} Σ$ be the associated s…

math.OA2017

Faithfulness of bi-free product states

Christopher Ramsey

Given a non-trivial family of pairs of faces of unital C*-algebras where each pair has a faithful state, it is proved that if the bi-free product state is faithful on the reduced b…

math.OA2017

A completely bounded non-commutative Choquet boundary for operator spaces

Raphaël Clouâtre, Christopher Ramsey

We develop a completely bounded counterpart to the non-commutative Choquet boundary of an operator space. We show how the class of completely bounded linear maps is too large to ac…