User IMeasy

21 votes

1 answer

2k views

Rationality of intersection of quadrics

asked Mar 28, 2011 at 9:33

20 votes

4 answers

8k views

13 months and not even one report. what would you do?

asked Nov 24, 2012 at 16:03

16 votes

1 answer

4k views

what is the cyclic cover trick?

asked Jun 19, 2013 at 12:33

14 votes

0 answers

2k views

conformal blocks for beginners

asked Dec 3, 2012 at 13:22

10 votes

1 answer

749 views

Is the Hasse principle a birational invariant?

asked Sep 27, 2012 at 17:36

9 votes

1 answer

3k views

blow-up along singular variety

asked Aug 23, 2013 at 15:04

9 votes

2 answers

839 views

$Pic$ of the stack of elliptic curves vs. $Pic$ of the coarse space

asked Nov 1, 2013 at 14:15

7 votes

3 answers

1k views

Hartshorne-Serre's correspondence in higher codimension

asked Jul 15, 2013 at 17:15

7 votes

1 answer

467 views

kapranov's realization of $\overline{M}_{0,n}$ over other fields

asked Oct 12, 2012 at 17:05

7 votes

1 answer

543 views

Picard group of $\mathcal{M}_{0,n}$

asked Aug 12, 2011 at 16:01

6 votes

2 answers

457 views

Fano 3-fold of degree 4

asked Mar 16, 2011 at 9:05

6 votes

1 answer

734 views

Are cubic four-folds containing a quartic scroll pfaffians?

asked Oct 15, 2011 at 19:52

6 votes

0 answers

544 views

Stability conditions for coherent sheaves and GIT

asked Aug 24, 2012 at 14:41

6 votes

3 answers

834 views

examples of moduli functors for which coarse moduli space does not exists

asked Feb 9, 2013 at 10:21

6 votes

2 answers

751 views

The fundamental group of a complex, quasi-affine variety

asked Sep 25, 2013 at 9:22

6 votes

1 answer

495 views

Parabolic bundles on elliptic curves

asked Apr 19, 2014 at 9:02

6 votes

1 answer

1k views

orthogonal group in characteristic 2

asked Aug 13, 2014 at 12:51

6 votes

1 answer

376 views

Self intersection and deformations

asked Oct 28, 2015 at 11:16

5 votes

0 answers

265 views

Atiyah class and coboundary map

asked Mar 13, 2019 at 20:51

5 votes

2 answers

564 views

density of singular K3 surfaces

asked Jul 5, 2020 at 21:18

5 votes

2 answers

1k views

chern classes of push-pulled vector bundles

asked Oct 23, 2013 at 15:06

5 votes

1 answer

718 views

what are mutations of sheaves all about?

asked Mar 6, 2013 at 10:51

4 votes

1 answer

434 views

(3,3) abelian surface and k3 surfaces

asked Nov 11, 2012 at 17:32

4 votes

0 answers

486 views

Stack of vector bundles (on a curve) over a strictly semi-stable point of the moduli space

asked Feb 7, 2013 at 17:25

4 votes

2 answers

439 views

Hasse principle for high dimensional varieties

asked Aug 20, 2012 at 15:17

4 votes

3 answers

1k views

Detecting if a polynomial is a Pfaffian

asked Jun 25, 2011 at 16:41

4 votes

1 answer

617 views

do geometric fibers determine scheme-theoretic image?

asked Aug 29, 2011 at 10:48

4 votes

1 answer

248 views

Relation between positive roots of $E_8$ and $\mathbb{F}_2^8 \setminus \{0\}$

asked Aug 12, 2022 at 13:42

4 votes

1 answer

199 views

Reference for definition of residue of a differential form, in all characteristics

asked Aug 31, 2019 at 13:47

4 votes

1 answer

432 views

Is the Hitchin fibration proper?

asked Jun 13, 2020 at 14:02

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106 Questions

Rationality of intersection of quadrics

13 months and not even one report. what would you do?

what is the cyclic cover trick?

conformal blocks for beginners

Is the Hasse principle a birational invariant?

blow-up along singular variety

$Pic$ of the stack of elliptic curves vs. $Pic$ of the coarse space

Hartshorne-Serre's correspondence in higher codimension

kapranov's realization of $\overline{M}_{0,n}$ over other fields

Picard group of $\mathcal{M}_{0,n}$

Fano 3-fold of degree 4

Are cubic four-folds containing a quartic scroll pfaffians?

Stability conditions for coherent sheaves and GIT

examples of moduli functors for which coarse moduli space does not exists

The fundamental group of a complex, quasi-affine variety

Parabolic bundles on elliptic curves

orthogonal group in characteristic 2

Self intersection and deformations

Atiyah class and coboundary map

density of singular K3 surfaces

chern classes of push-pulled vector bundles

what are mutations of sheaves all about?

(3,3) abelian surface and k3 surfaces

Stack of vector bundles (on a curve) over a strictly semi-stable point of the moduli space

Hasse principle for high dimensional varieties

Detecting if a polynomial is a Pfaffian

do geometric fibers determine scheme-theoretic image?

Relation between positive roots of $E_8$ and $\mathbb{F}_2^8 \setminus \{0\}$

Reference for definition of residue of a differential form, in all characteristics

Is the Hitchin fibration proper?