Timeline for Discrete groups G whose full C*-algebra C*(G) is not quasidiagonal?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Mar 31, 2012 at 14:49 | vote | accept | Marius Dadarlat | ||
| Jun 13, 2011 at 22:14 | comment | added | Makoto Yamashita | Unital QD algebras must have amenable traces. The combination of the property (T) and an amenable trace implies the existence of a fin. dim representation [Brown-Ozawa, Cor. 6.4.10]. | |
| Jun 13, 2011 at 18:07 | comment | added | Yemon Choi |
I don't see why general QD $C^*$-algebras need to have finite dimensional quotients, in general; my (limited) understanding of Andreas Thom's answer is that he and Ozawa have shown that certain group $C^*$-algebras are special in this regard
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| Jun 13, 2011 at 12:02 | history | answered | Makoto Yamashita | CC BY-SA 3.0 |