Timeline for On equation $e^{xy-yx}=e^xe^ye^{-x}e^{-y}$ in $C^*$ algebras
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Oct 15, 2019 at 4:21 | vote | accept | Ali Taghavi | ||
| Oct 14, 2019 at 16:45 | comment | added | YCor | @user44191 Thanks! I had actually selected one of two homogeneous terms in my draft, then forgot the other one. It indeed yields $[x+y,[x,y]]$. Corrected. | |
| Oct 14, 2019 at 16:44 | history | edited | YCor | CC BY-SA 4.0 |
fixed Taylor expansion
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| Oct 14, 2019 at 16:18 | comment | added | user44191 | I think your 3rd order Taylor expansion can't be right; there should be some symmetry between $x$ and $y$, which should force a term of the form $[x, [x, y]]$; this can also be seen by looking at the inverse (which takes the form $e^y e^x e^{-y} e^{-x}$). This can be dealt with by slightly more careful manipulation of the coefficients of $x$ and $y$, though. | |
| Oct 14, 2019 at 12:22 | history | edited | Pierre-Yves Gaillard | CC BY-SA 4.0 |
fixed link
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| Oct 14, 2019 at 12:15 | history | edited | YCor | CC BY-SA 4.0 |
fixed typo
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| Oct 14, 2019 at 9:18 | history | answered | YCor | CC BY-SA 4.0 |