Timeline for Bounds on dimension of cokernel of $Sym^2(H^0(X,D)) \to H^0(X,2D)$?
Current License: CC BY-SA 3.0
4 events
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| Nov 15, 2013 at 15:51 | comment | added | David Zureick-Brown | Lev, I don't know the answer to your question, but am incidentally interested in what happens when X is a modular curve and D is a half canonical divisor plus a small number of points. Do you have any thoughts or knowledge about this? | |
| Nov 11, 2013 at 11:51 | comment | added | Lev Borisov | I actually have a family of curves (these are modular curves). The point is that the dimension of $H^0(X,D)$ is up to a constant the root of the genus. Also, the map is definitely not surjective, but I would like to bound the defect. | |
| Nov 11, 2013 at 10:14 | comment | added | Dan Petersen | what is $n$ here? | |
| Nov 10, 2013 at 22:35 | history | asked | Lev Borisov | CC BY-SA 3.0 |