User Minseon Shin

18 votes

2 answers

2k views

Does the functor Sch to Top have a right adjoint?

asked Feb 19, 2016 at 18:33

13 votes

1 answer

1k views

Is the Brauer group functor a Zariski sheaf?

asked Sep 25, 2015 at 4:24

11 votes

1 answer

785 views

Is $\mathscr{M}_{1,1,\mathbb{Z}}$ isomorphic to a quotient stack by a finite group?

asked Aug 31, 2017 at 20:16

10 votes

2 answers

1k views

Picard group of a finite type $\mathbb{Z}$-algebra

asked Feb 23, 2018 at 4:56

8 votes

1 answer

682 views

Is the strict henselization isomorphic to the filtered colimit of finite etale algebras?

asked Apr 26, 2018 at 20:55

7 votes

0 answers

867 views

Affine covering whose intersections are distinguished affine open

asked Jun 3, 2017 at 22:35

7 votes

1 answer

522 views

When are these definitions of "toric variety" equivalent?

asked Nov 1, 2017 at 22:27

7 votes

1 answer

818 views

Factorization of an irreducible polynomial in the field extension it defines

asked Apr 9, 2022 at 0:31

5 votes

1 answer

331 views

Descent for the "localizations at all primes" ring map

asked Aug 23, 2021 at 19:15

5 votes

0 answers

561 views

Brauer groups of a local ring and of its residue field

asked Jun 2, 2020 at 8:47

5 votes

0 answers

456 views

Fraction fields of strict henselizations of DVRs

asked Oct 17, 2018 at 2:42

4 votes

1 answer

355 views

A noneffective descent datum: isomorphism not satisfying the cocycle condition

asked Jan 17, 2021 at 9:22

3 votes

1 answer

270 views

Are local fields $C_{2}$?

asked Nov 9, 2018 at 21:21

3 votes

0 answers

205 views

Extending vector bundles over a regular divisor in a regular affine scheme

asked May 21, 2018 at 20:21

3 votes

1 answer

400 views

Non-noetherian cohomology and base change

asked Sep 11, 2018 at 3:43

3 votes

1 answer

313 views

Are local rings of monoid algebras geometrically unibranch?

asked Oct 28, 2017 at 16:09

2 votes

1 answer

168 views

Approximating finite type algebras over a formal power series ring

asked May 2, 2018 at 4:58

2 votes

1 answer

337 views

Is "quasi-coherent" an fpqc-local property of modules?

asked Nov 29, 2016 at 2:58

2 votes

1 answer

152 views

Transitivity of an invariant of finitely generated field extensions

asked Oct 3, 2018 at 3:14

2 votes

1 answer

267 views

Is there a "minimal" center of a blowup?

asked Nov 18, 2018 at 5:02

Stack Exchange Network

20 Questions

Does the functor Sch to Top have a right adjoint?

Is the Brauer group functor a Zariski sheaf?

Is $\mathscr{M}_{1,1,\mathbb{Z}}$ isomorphic to a quotient stack by a finite group?

Picard group of a finite type $\mathbb{Z}$-algebra

Is the strict henselization isomorphic to the filtered colimit of finite etale algebras?

Affine covering whose intersections are distinguished affine open

When are these definitions of "toric variety" equivalent?

Factorization of an irreducible polynomial in the field extension it defines

Descent for the "localizations at all primes" ring map

Brauer groups of a local ring and of its residue field

Fraction fields of strict henselizations of DVRs

A noneffective descent datum: isomorphism not satisfying the cocycle condition

Are local fields $C_{2}$?

Extending vector bundles over a regular divisor in a regular affine scheme

Non-noetherian cohomology and base change

Are local rings of monoid algebras geometrically unibranch?

Approximating finite type algebras over a formal power series ring

Is "quasi-coherent" an fpqc-local property of modules?

Transitivity of an invariant of finitely generated field extensions

Is there a "minimal" center of a blowup?