Timeline for When is the push-forward of the structure sheaf locally free
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 15, 2012 at 20:42 | comment | added | Matthieu Romagny | @Yosemite Sam: one reference is Matsumura, Commutative Ring Theory, Thm 23.1 and another reference is EGA IV2 (=IHES 24), Prop 6.1.5. | |
| Jan 25, 2012 at 13:58 | comment | added | Yosemite Sam | @matthew morrow: could you please give a reference for the miracle cohen-macaulay theorem? | |
| May 8, 2010 at 13:32 | comment | added | Matthew Morrow | Don't forget the "miracle Cohen-Macaulay" theorem: if $f:X\to Y$ is a local complete intersection with $Y$ regular (and locally Noetherian!! Trying to avoid the mistake I made above!), then $X$ is Cohen-Macaulay. | |
| May 8, 2010 at 13:09 | history | answered | David E Speyer | CC BY-SA 2.5 |