Timeline for In a Banach algebra, do ab and ba have almost the same exponential spectrum?
Current License: CC BY-SA 3.0
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| Aug 20, 2013 at 12:54 | history | edited | Malik Younsi | CC BY-SA 3.0 |
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| Nov 17, 2009 at 8:15 | comment | added | Yemon Choi | Yes, thanks. Unfortunately the proof seems to rely on subtle properties of the densely-defined trace on B(H) - it's not clear how one might generalise to other Banach algebras. Even the C*-case could be difficult. | |
| Nov 16, 2009 at 17:03 | comment | added | Malik Younsi | Did you receive the proof, Yemon? | |
| Nov 5, 2009 at 13:45 | comment | added | Malik Younsi | I'm sorry Yemon, I hadn't seen your comment before. hmm I forgot some key steps in the argument, but I have a pdf with the proof somewhere. I'll find it and then I'll send it to you via ulaval. | |
| Nov 3, 2009 at 6:57 | comment | added | Yemon Choi | Do you remember how the proof goes for the Calkin algebra? I'm not sure if the proof I had previously found works, there seems to be a gap, or an error in my notes. | |
| Nov 3, 2009 at 5:23 | history | undeleted | Malik Younsi | ||
| Nov 3, 2009 at 5:23 | history | deleted | Malik Younsi | ||
| Oct 30, 2009 at 13:10 | comment | added | Malik Younsi | Yes, it does. This was my first post, I was looking for "functional analysis" and "Banach algebras" tags, but for some reason couldn't find them, so I picked those two tags. | |
| Oct 27, 2009 at 21:33 | history | edited | Malik Younsi | CC BY-SA 2.5 |
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| Oct 27, 2009 at 21:20 | history | undeleted | Malik Younsi | ||
| Oct 27, 2009 at 21:20 | history | deleted | Malik Younsi | ||
| Oct 27, 2009 at 21:13 | history | undeleted | Malik Younsi | ||
| Oct 27, 2009 at 21:13 | history | deleted | Malik Younsi | ||
| Oct 27, 2009 at 15:09 | history | edited | Malik Younsi | CC BY-SA 2.5 |
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| Oct 26, 2009 at 15:15 | history | answered | Malik Younsi | CC BY-SA 2.5 |