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visits member for 1 year, 9 months
seen Jun 23 '13 at 20:35

Jul
2
awarded  Curious
Jun
22
comment deformation of curves with three nodes
Thank you very much. May I ask for some more detail explanation of it?
Jun
22
asked deformation of curves with three nodes
Jun
12
comment inverse image in the blowup
Thank you very much. If I understand correctly, everything should work in a nice way if $Z_1$ and $Z_2$ are both integral. Am I right?
Jun
12
asked inverse image in the blowup
Jun
2
comment Is the branching locus of the double cover of surfaces always one dimensional?
Thank you all for useful comments!
Jun
2
accepted Is the branching locus of the double cover of surfaces always one dimensional?
Jun
1
asked Is the branching locus of the double cover of surfaces always one dimensional?
Apr
24
accepted line bundle on a nodal curve coming degeneration of smooth ones
Apr
23
comment line bundle on a nodal curve coming degeneration of smooth ones
Thanks! I've just updated it. Sorry for my careless...
Apr
23
revised line bundle on a nodal curve coming degeneration of smooth ones
added 33 characters in body
Apr
23
asked line bundle on a nodal curve coming degeneration of smooth ones
Apr
18
comment hyperelliptic stable genus four curve
Yeah, this is what I did for a couple of cases. And that's how I made such an expectation.
Apr
17
comment hyperelliptic stable genus four curve
In fact, on any smooth genus four curve, a degree three line bundle has at most two linearly independent global sections. So $h^0=2$ and $ h^0\geq 2$ make no difference.
Apr
16
asked hyperelliptic stable genus four curve
Apr
10
asked maximal separated quotient scheme
Apr
1
awarded  Scholar
Apr
1
accepted normal bundle of hyperelliptic locus
Apr
1
comment normal bundle of hyperelliptic locus
For smooth curves, this is not hard. What's tricky is the singular part...
Apr
1
asked normal bundle of hyperelliptic locus