Timeline for The functoriality of group C* algebra structure
Current License: CC BY-SA 3.0
14 events
| when toggle format | what | by | license | comment | |
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| S Apr 30, 2016 at 12:33 | history | suggested | Mahmood Al | CC BY-SA 3.0 |
Improved the formatting!
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| Apr 30, 2016 at 12:02 | review | Suggested edits | |||
| S Apr 30, 2016 at 12:33 | |||||
| Apr 20, 2011 at 5:28 | comment | added | Andreas Thom | This is almost the same question as mathoverflow.net/questions/14995/… | |
| Apr 19, 2011 at 20:47 | answer | added | Alain Valette | timeline score: 7 | |
| Jun 18, 2010 at 18:13 | vote | accept | skripka | ||
| Jun 18, 2010 at 18:13 | |||||
| Jun 18, 2010 at 18:13 | vote | accept | skripka | ||
| Jun 18, 2010 at 18:13 | |||||
| Jun 18, 2010 at 18:13 | vote | accept | skripka | ||
| Jun 18, 2010 at 18:13 | |||||
| Jun 18, 2010 at 18:13 | vote | accept | skripka | ||
| Jun 18, 2010 at 18:13 | |||||
| Jun 18, 2010 at 15:48 | answer | added | Matthew Daws | timeline score: 6 | |
| Jun 18, 2010 at 8:23 | comment | added | skripka | Thank you very much for your response! As far as my (and your) questions: Q1. I am interested in this question because I think that it is very natural but I can't find an explanation of this facts in the literature (I've read Davidson and Pedersen, for instance) Q2. Thank you very much for your hint, I understand it well now Q3. I know that C*(Z) = C(T), where T is unit circle, and C*(Z/nZ) = C^n.. As far as the nature of my interest - I am a low-dimensional topologist and I started to learn C* - algebras in connection with K-theory that could be useful in my science. | |
| Jun 17, 2010 at 14:02 | comment | added | Yemon Choi |
Q3 should also not be that hard if you understand the definitions and have been told/have learned/can see what $C^*({\mathbb Z})$ is.
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| Jun 17, 2010 at 14:00 | comment | added | Yemon Choi |
By the way, here's a hint for the first part of Q2: $C_r^*({\mathbb F}_2)$ is simple, hence has no non-trivial closed ideals, even though there is an obvious homomorphism from ${\mathbb F}_2$ onto ${\mathbb Z}^2$. Here ${\mathbb F}_2$ and ${\mathbb Z}_2$ are, respectively, the free group and the free abelian group on two generators.
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| Jun 17, 2010 at 13:56 | comment | added | Yemon Choi | Maybe you could give some brief detail about why you want to know, what level of study/research you are at, etc? These are natural questions but they seem like they could come from a course on $C^*$-algebras. | |
| Jun 17, 2010 at 13:49 | history | asked | skripka | CC BY-SA 2.5 |