Timeline for Automorphisms of the totally ordered group $\mathbb{Z}{^n}$ with lexicographical order
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 2, 2009 at 18:29 | comment | added | Charles Siegel | Ack, apologies. This is what I get for trying to do induction on no sleep, early in the morning. | |
| Nov 2, 2009 at 14:40 | vote | accept | user717 | ||
| Nov 2, 2009 at 14:40 | |||||
| Nov 2, 2009 at 14:40 | comment | added | Eric Wofsey | This argument breaks down because the positive part of Z^n is not well-ordered. The argument shows that (0,0), (0,1), (0,2), etc must be fixed. But there's no next smallest element that has to be fixed after that. | |
| Nov 2, 2009 at 14:39 | vote | accept | user717 | ||
| Nov 2, 2009 at 14:40 | |||||
| Nov 2, 2009 at 14:32 | history | answered | Charles Siegel | CC BY-SA 2.5 |