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math.OA2008★ 3 cited
Local Unitary Cocycles of E_0-semigroups
Daniel Markiewicz, Robert T. Powers
This paper concerns the structure of the group of local unitary cocycles, also called the gauge group, of an E_0-semigroup. The gauge group of a spatial E_0-semigroup has a natural…
math.OA2008
Limits of groupoid C*-algebras arising from open covers
Aviv Censor, Daniel Markiewicz
I. Raeburn and J. Taylor have constructed continuous-trace C*-algebras with a prescribed Dixmier-Douady class, which also depend on the choice of an open cover of the spectrum. We…