16 citations · 125 across the 34 of their papers we have counts for
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math.OA2008★ 2 cited
Bundles of C*-categories, II: C*-dynamical systems and Dixmier-Douady invariants
Ezio Vasselli
We introduce a cohomological invariant arising from a class in nonabelian cohomology. This invariant generalizes the Dixmier-Douady class and encodes the obstruction to a C*-algebr…
math.KT2008
Net bundles over posets and K-theory
J. E. Roberts, G. Ruzzi, E. Vasselli
We continue studying net bundles over partially ordered sets (posets), defined as the analogues of ordinary fibre bundles. To this end, we analyze the connection between homotopy,…