Timeline for direct image functor
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 10, 2010 at 3:42 | vote | accept | john | ||
| Dec 9, 2010 at 19:35 | comment | added | Sándor Kovács | John, as Donu pointed out, this is such an example, but I added an addition to show that you can actually choose your $Y$. | |
| Dec 9, 2010 at 19:34 | history | edited | Sándor Kovács | CC BY-SA 2.5 |
added 465 characters in body
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| Dec 9, 2010 at 19:13 | comment | added | Donu Arapura | John, this is a counterexample (a point is a projective variety...). | |
| Dec 9, 2010 at 18:18 | comment | added | john | But, I am trying to find counter example in the where $X$ and $Y$ are projective varieties and $f$ is surjective. | |
| Dec 9, 2010 at 17:20 | comment | added | Sándor Kovács | I guess Torsten beat me to this example while I was typing it (and stopped in mid-sentence).... :) | |
| Dec 9, 2010 at 17:19 | history | answered | Sándor Kovács | CC BY-SA 2.5 |