Benton L. Duncan

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Articles: 1

When universal separated graph $C^*$-algebras are exact

MFAT 26 (2020), no. 2, 126-140

126-140

We consider when the universal $C^*$-algebras associated to separated graphs are exact. Specifically, for finite separated graphs we show that the universal $C^*$-algebra is exact if and only if the $C^*$-algebra is isomorphic to a graph $C^*$-algebra which occurs precisely when the universal and reduced $C^*$-algebras of the separated graph are isomorphic.

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