Matthew Kennedy

most citedBoundaries of reduced C*-algebras of discrete groups

38 citations · 38 across the 2 of their papers we have counts for

collaborators

2 papers

math.OA2024

Intermediate subalgebras for reduced crossed products of discrete groups

Matthew Kennedy, Dan Ursu

Let $α : Γ ↷ A$ be an action of a discrete group $Γ$ on a unital C*-algebra $A$ by *-automorphisms and let $A ⋊_{α, λ} Γ$ denote the corresponding reduced crossed…

math.OA2014★ 38 cited

Boundaries of reduced C*-algebras of discrete groups

Mehrdad Kalantar, Matthew Kennedy

For a discrete group G, we consider the minimal C*-subalgebra of $ℓ^{\infty} (G)$ that arises as the image of a unital positive G-equivariant projection. This algebra always exists…