Aoi Koshigaya's user avatar
Aoi Koshigaya's user avatar
Aoi Koshigaya's user avatar
Aoi Koshigaya
  • Member for 5 years, 5 months
  • Last seen more than a month ago
7 votes
0 answers
300 views

Number of rational points over finite fields mod $q$ is birational invariant

6 votes
1 answer
266 views

Existence of curves of arbitrary genus on some K3 surface

4 votes
1 answer
385 views

Pullback of very ample line bundles under finite étale covering

4 votes
0 answers
201 views

Grothendieck group of admissible $p$-adic representations

4 votes
0 answers
137 views

Moduli stacks of relative morphisms

3 votes
0 answers
200 views

Definitions of formal schemes

3 votes
0 answers
339 views

The category of finite flat group schemes

3 votes
0 answers
183 views

Proper flat morphisms with geometrically connected fibers

3 votes
1 answer
436 views

Zero schemes of sections of locally free sheaves

3 votes
1 answer
124 views

Line bundle $\mathcal L(-P_1 - \cdots - P_{r - 1})$ on a curve being globally generated for $r - 1$ general points

3 votes
0 answers
342 views

Stable $\infty$-category of motives

2 votes
1 answer
136 views

Minimal free resolution over arbitrary varieties

2 votes
0 answers
234 views

Matsusaka's big theorem

2 votes
0 answers
84 views

Colimits in the category of formal schemes

2 votes
0 answers
260 views

Infinite Galois theory for schemes

2 votes
0 answers
159 views

Outer Galois representations and Tate modules of Jacobian varieties

2 votes
1 answer
302 views

Uniqueness of Stein factorization

2 votes
1 answer
350 views

Relative Künneth formula

1 vote
1 answer
317 views

Effective Cartier divisors corresponding to a line bundle

1 vote
0 answers
93 views

Fujita's ampleness conjecture for very ample line bundles

1 vote
0 answers
54 views

An inequality of intersection multiplicities and products of algebraic multiplicities on singular varieties

1 vote
0 answers
240 views

Definitions of Picard schemes and Picard stacks

1 vote
0 answers
109 views

Mori fiber space in dimension $2$ over a point is $\mathbf P^2$

1 vote
0 answers
86 views

The kernel of the isogeny $[n]$ of an abelian variety

1 vote
1 answer
955 views

Two definitions of formal schemes

1 vote
0 answers
222 views

Deformation of nodal curves

1 vote
0 answers
128 views

Picard groups and fundamental groups of subvarieties of projective space with small codimension

1 vote
0 answers
143 views

Admissible subcategories of derived categories

0 votes
0 answers
132 views

Coefficient of the exceptional divisor in pullbacks of divisors along a blowing-up