4 citations · 4 across the 2 of their papers we have counts for
2 papers
math.OA2011★ 4 cited
On twisted higher-rank graph C*-algebras
Alex Kumjian, David Pask, Aidan Sims
We define the categorical cohomology of a k-graph Λ and show that the first three terms in this cohomology are isomorphic to the corresponding terms in the cohomology defined in ou…
funct-an1994
The equivariant Brauer groups of commuting free and proper actions are isomorphic
Alexander Kumjian, Iain Raeburn, Dana P. Williams
If is a locally compact space which admits commuting free and proper actions of locally compact groups and , then the Brauer groups $\Br_H(G/X)$ and $\Br_G(X/H)$ are nat…