Skip to main content
11 events
when toggle format what by license comment
Apr 15, 2010 at 7:32 vote accept Hailong Dao
Apr 15, 2010 at 7:32 history bounty ended Hailong Dao
Apr 15, 2010 at 7:31 comment added Hailong Dao This looks good to me, so I will accept. Thanks a lot.
Apr 14, 2010 at 14:54 comment added naf I have edited the answer. Hope it is clear now.
Apr 14, 2010 at 14:52 history edited naf CC BY-SA 2.5
Added references and some more details
Apr 13, 2010 at 17:07 comment added Hailong Dao Hi again, thanks for the new post. This looks really interesting, but I am a little confused about your $Y$. Do you mean something like $Y=Spec k[x,y,z]/(x^2+y^2+z^2)$? Then I think $Cl(Y)=\mathbb Z/(2)$.
Apr 13, 2010 at 5:08 history edited naf CC BY-SA 2.5
Tried to correct the errors in the earlier example
Apr 12, 2010 at 14:58 comment added Hailong Dao No problem, thanks for being interested!
Apr 12, 2010 at 14:46 comment added naf You are right. Sorry for being so careless.
Apr 12, 2010 at 13:37 comment added Hailong Dao The class group of the local ring the origin of the cone over Y is $Cl(Y)/\mathbb Z(H)$, where $H$ is the hyperplane section. So I don't think your example works.
Apr 12, 2010 at 12:57 history answered naf CC BY-SA 2.5