37 citations · 65 across the 12 of their papers we have counts for
3 papers · 1 filter
Co-universal C*-algebras associated to generalised graphs
Nathan Brownlowe, Aidan Sims, Sean T. Vittadello
We introduce P-graphs, which are generalisations of directed graphs in which paths have a degree in a semigroup P rather than a length in N. We focus on semigroups P arising as par…
Exel's crossed product for non-unital C*-algebras
Nathan Brownlowe, Iain Raeburn, Sean T. Vittadello
We consider a family of dynamical systems (A,alpha,L) in which alpha is an endomorphism of a C*-algebra A and L is a transfer operator for α. We extend Exel's construction of a cro…
Co-universal algebras associated to product systems, and gauge-invariant uniqueness theorems
Toke Meier Carlsen, Nadia S. Larsen, Aidan Sims +1
Let X be a product system over a quasi-lattice ordered group. Under mild hypotheses, we associate to X a C*-algebra which is co-universal for injective Nica covariant Toeplitz repr…