User Joachim - MathOverflow

Joachim

Member for 11 years, 4 months
Last seen more than 4 years ago

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11 Questions

Score Activity Newest Views

9 votes

2 answers

1k views

Reference request on birational invariance of Chow group of zero cycles of degree zero

asked Jun 10, 2016 at 12:41

4 votes

3 answers

1k views

Divisor class group on blowup of nodal surface

asked Feb 18, 2013 at 20:22

4 votes

1 answer

820 views

Reference for fact about dualizing sheaf of singular varieties

asked Mar 27, 2013 at 13:45

3 votes

1 answer

344 views

Reference for the classification of (singular) degree 4 surfaces in $\mathbb{P}^3_{\mathbb{C}}$?

asked May 3, 2013 at 15:24

3 votes

1 answer

172 views

What can a quartic surface in $\mathbb{P}^3$ with an ordinary quadruple point look like?

asked May 27, 2013 at 13:17

3 votes

1 answer

930 views

Do there exist double points on an algebraic surface in $\mathbb{P}_{\mathbb{C}}^3$ that are not rational?

asked Nov 13, 2013 at 21:37

3 votes

0 answers

117 views

Finding two hypersurfaces of the same degree that intersect $X/\mathbb{F}_q$ smoothly

asked Jun 15, 2016 at 20:12

1 vote

1 answer

316 views

Modern (english) version of 1960 Italian paper by Gallarati?

asked Apr 24, 2013 at 17:45

0 votes

0 answers

620 views

Quicker way to show that the restriction to a open subvariety is again proper?

asked Dec 18, 2012 at 14:03

0 votes

2 answers

246 views

Another reference request about dualizing sheaves for nodal surfaces

asked Mar 27, 2013 at 14:13

0 votes

1 answer

743 views

Spectral sequence for composition of global sections and tensor product of sheaves

asked Feb 27, 2013 at 0:08