Timeline for Why are flat morphisms "flat?"
Current License: CC BY-SA 2.5
17 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 10, 2023 at 6:20 | answer | added | Connor Bass | timeline score: 6 | |
| Jun 24, 2020 at 1:24 | answer | added | Dr. Evil | timeline score: 2 | |
| Nov 18, 2014 at 8:29 | answer | added | Martin Brandenburg | timeline score: 21 | |
| Oct 4, 2010 at 5:49 | answer | added | Sándor Kovács | timeline score: 5 | |
| May 23, 2010 at 6:11 | comment | added | BCnrd | @Mariano: A couple of weeks ago I asked Serre about this. He didn't remember why the word flat was used, or if the word was due to him or possibly Cartan/Eilenberg. One point he emphasized is that it was Grothendieck who deserves all credit for the discovery of the importance of flatness in geometry (fibral criteria, families, etc.). For Serre it was a matter of isolating the "right" algebraic notion with which to discuss the various changes of rings (analytic vs. algebraic local rings, completions thereof, general localization) which came up in GAGA and FAC. | |
| Nov 27, 2009 at 6:52 | vote | accept | Harrison Brown | ||
| Nov 26, 2009 at 15:31 | answer | added | Sasha | timeline score: 5 | |
| Nov 25, 2009 at 21:03 | answer | added | Andrew Critch | timeline score: 204 | |
| Nov 25, 2009 at 14:53 | answer | added | Marc Nieper-Wißkirchen | timeline score: 14 | |
| Nov 25, 2009 at 14:02 | answer | added | Daniel Erman | timeline score: 53 | |
| Nov 25, 2009 at 13:39 | answer | added | user717 | timeline score: 38 | |
| Nov 25, 2009 at 13:15 | answer | added | Joel Fine | timeline score: 2 | |
| Nov 25, 2009 at 12:45 | comment | added | Mariano Suárez-Álvarez | The term was introduced by Jean-Pierre Serre. You could ask him or, better, suggest he signs up at MO :P | |
| Nov 25, 2009 at 12:33 | answer | added | Timo Schürg | timeline score: 12 | |
| Nov 25, 2009 at 12:10 | comment | added | Harrison Brown | Flat morphisms of schemes would be good, although I think most of the different things called "flat" in algebraic geometry are pretty closely related, so really anything would work. | |
| Nov 25, 2009 at 11:53 | comment | added | user709 | What is the flat ness you are having in mind? Flat morphisms of schemes? | |
| Nov 25, 2009 at 11:41 | history | asked | Harrison Brown | CC BY-SA 2.5 |