Timeline for A $C^{*}$ algebra associated to a graded $C^{*}$ algebra
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Jun 17, 2020 at 7:23 | history | edited | Johannes Hahn | CC BY-SA 4.0 |
I remembered a closer connection between facts 1 & 2
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| Apr 20, 2015 at 18:53 | vote | accept | Ali Taghavi | ||
| Apr 17, 2015 at 14:53 | history | edited | Johannes Hahn | CC BY-SA 3.0 |
Rng-Automorphisms are automatically Ring-Automorphism because of their surjectivity
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| Apr 15, 2015 at 7:59 | comment | added | Simon Henry | It is possible to define $A \rtimes G$ when $G$ is not finite, but there is several possible result depending on the norm you decide to put on the algebra of finite sum of $g.a$ for $g \in G$ and $a \in A$, there is always two natural choice of norm which gives respectively the reduced and the maximal semi-direct product, and it is possible that there is other choice in between. | |
| Apr 14, 2015 at 22:25 | history | edited | Johannes Hahn | CC BY-SA 3.0 |
added 215 characters in body
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| Apr 14, 2015 at 22:09 | history | answered | Johannes Hahn | CC BY-SA 3.0 |