85 citations · 338 across the 22 of their papers we have counts for
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math.OA2017
An infinite quantum Ramsey theorem
Matthew Kennedy, Taras Kolomatski, Daniel Spivak
We prove an infinite Ramsey theorem for noncommutative graphs realized as unital self-adjoint subspaces of linear operators acting on an infinite dimensional Hilbert space. Specifi…
math.OA2017★ 29 cited
Noncommutative boundaries and the ideal structure of reduced crossed products
Matthew Kennedy, Christopher Schafhauser
A C*-dynamical system is said to have the ideal separation property if every ideal in the corresponding crossed product arises from an invariant ideal in the C*-algebra. In this pa…
math.OA2017★ 3 cited
Traces on reduced group C*-algebras
Matthew Kennedy, Sven Raum
In this short note we prove that the reduced group C*-algebra of a locally compact group admits a non-zero trace if and only if the amenable radical of the group is open. This comp…