Timeline for Commutator ideal in nonunital C*-algebra
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 30, 2022 at 12:59 | vote | accept | Hannes Thiel | ||
| Aug 30, 2022 at 11:55 | answer | added | Narutaka OZAWA | timeline score: 9 | |
| Aug 30, 2022 at 6:05 | comment | added | Boris Bilich | What is an example where commutator is not closed? | |
| Aug 28, 2022 at 23:04 | comment | added | Hannes Thiel | Yes, this follows from Corollary 3 in [1]: Every compact hermitian operator is a sum of two self-commutators of compact operators. [1] Fan, Fong. Which operators are the self-commutators of compact operators? Proc. Amer. Math. Soc. 80 (1980), no. 1, 58–60 | |
| Aug 28, 2022 at 22:23 | comment | added | Nik Weaver | Is this even known about $K(H)$? | |
| Aug 28, 2022 at 12:09 | history | asked | Hannes Thiel | CC BY-SA 4.0 |