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IMeasy
  • Member for 14 years, 4 months
  • Last seen this week
21 votes
1 answer
2k views

Rationality of intersection of quadrics

20 votes
4 answers
8k views

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

16 votes
1 answer
4k views

what is the cyclic cover trick?

14 votes
0 answers
2k views

conformal blocks for beginners

10 votes
1 answer
742 views

Is the Hasse principle a birational invariant?

9 votes
1 answer
3k views

blow-up along singular variety

9 votes
2 answers
832 views

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

7 votes
3 answers
1k views

Hartshorne-Serre's correspondence in higher codimension

7 votes
1 answer
453 views

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

7 votes
1 answer
537 views

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

6 votes
2 answers
451 views

Fano 3-fold of degree 4

6 votes
1 answer
731 views

Are cubic four-folds containing a quartic scroll pfaffians?

6 votes
0 answers
535 views

Stability conditions for coherent sheaves and GIT

6 votes
3 answers
798 views

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

6 votes
2 answers
732 views

The fundamental group of a complex, quasi-affine variety

6 votes
1 answer
484 views

Parabolic bundles on elliptic curves

6 votes
1 answer
1k views

orthogonal group in characteristic 2

5 votes
1 answer
354 views

Self intersection and deformations

5 votes
0 answers
254 views

Atiyah class and coboundary map

5 votes
2 answers
542 views

density of singular K3 surfaces

5 votes
2 answers
1k views

chern classes of push-pulled vector bundles

5 votes
1 answer
679 views

what are mutations of sheaves all about?

4 votes
1 answer
426 views

(3,3) abelian surface and k3 surfaces

4 votes
0 answers
476 views

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

4 votes
2 answers
433 views

Hasse principle for high dimensional varieties

4 votes
3 answers
1k views

Detecting if a polynomial is a Pfaffian

4 votes
1 answer
615 views

do geometric fibers determine scheme-theoretic image?

4 votes
1 answer
246 views

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

4 votes
1 answer
196 views

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

4 votes
1 answer
417 views

Is the Hitchin fibration proper?