Timeline for Is -1 a sum of 2 squares in a certain field K?
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 6, 2010 at 6:17 | comment | added | Mikhail Borovoi | @Graham: I asked a question to Eva Bayer about Galois cohomology of $G=PSU_n$ and maximal tori of $G$ over field extensions of $\mathbb{R}$, Eva forwarded my question to Serre, Serre answered it in a letter to Eva, and Eva forwarded me his letter. | |
| May 6, 2010 at 6:07 | vote | accept | Mikhail Borovoi | ||
| May 5, 2010 at 19:48 | comment | added | Graham Leuschke | I hope it's not impertinent to ask: how do you know about a letter Serre wrote four days ago? | |
| May 5, 2010 at 18:35 | answer | added | Pete L. Clark | timeline score: 22 | |
| May 5, 2010 at 18:23 | history | asked | Mikhail Borovoi | CC BY-SA 2.5 |