User Leo Herr

12 votes

0 answers

266 views

Do connected algebraic stacks have a smooth cover by a connected scheme?

asked Nov 20, 2020 at 17:42

10 votes

1 answer

335 views

When is a twisted form coming from a torsor trivial?

asked Sep 6, 2020 at 2:22

7 votes

0 answers

216 views

Cohomology of fibers of a morphism of a blowup of affine space

asked Feb 26 at 22:25

6 votes

2 answers

360 views

Distinguished triangle of dualizing complexes and/or determinants?

asked Apr 12, 2022 at 20:07

6 votes

0 answers

139 views

Is the monoid of all cancellative finitely generated commutative monoids cancellative?

asked Oct 12, 2022 at 16:35

5 votes

1 answer

200 views

Extending rational maps of nodal curves

asked Jul 22, 2020 at 19:48

5 votes

0 answers

328 views

Most divisors on a curve aren't special?

asked Dec 31, 2020 at 22:07

4 votes

0 answers

195 views

K theoretic pushforward along gerbes

asked Sep 25, 2021 at 21:41

4 votes

0 answers

193 views

Does cohomology and base change hold if supported at a point?

asked Sep 9, 2020 at 21:39

3 votes

1 answer

293 views

When do generizations ("generalizations") lift uniquely?

asked Jan 23, 2020 at 0:43

3 votes

0 answers

213 views

If the normalization is affine, is it affine? (if quasiaffine)

asked Nov 30, 2020 at 23:01

3 votes

0 answers

103 views

Finite algebras with finitely many automorphisms

asked Mar 5 at 15:35

3 votes

0 answers

144 views

Hypercovers with sieves

asked Mar 12, 2022 at 0:17

2 votes

1 answer

343 views

K/G-theory of affine bundles

asked Oct 29, 2020 at 1:54

2 votes

1 answer

166 views

Is the blowup of a toric variety corresponding to a subdivision normal?

asked Feb 19, 2021 at 4:57

2 votes

0 answers

134 views

Torsors for nonabelian groups and maps to contracted products

asked Jun 25, 2021 at 20:28

1 vote

0 answers

240 views

Is there an intrinsic Gauss map?

asked Jan 2, 2021 at 19:01

1 vote

0 answers

122 views

Pushforward of sheaves along finite etale map

asked Nov 7, 2021 at 16:48

1 vote

2 answers

273 views

Pushforward of structure sheaf along a torsor for a finite group

asked Nov 30, 2021 at 4:04

1 vote

0 answers

93 views

Geometric quotients of DM stacks by group actions

asked Jan 24, 2022 at 6:11

1 vote

0 answers

141 views

G Theory Localization Sequence without "quasiseparated"

asked Nov 11, 2020 at 0:01

Stack Exchange Network

21 Questions

Do connected algebraic stacks have a smooth cover by a connected scheme?

When is a twisted form coming from a torsor trivial?

Cohomology of fibers of a morphism of a blowup of affine space

Distinguished triangle of dualizing complexes and/or determinants?

Is the monoid of all cancellative finitely generated commutative monoids cancellative?

Extending rational maps of nodal curves

Most divisors on a curve aren't special?

K theoretic pushforward along gerbes

Does cohomology and base change hold if supported at a point?

When do generizations ("generalizations") lift uniquely?

If the normalization is affine, is it affine? (if quasiaffine)

Finite algebras with finitely many automorphisms

Hypercovers with sieves

K/G-theory of affine bundles

Is the blowup of a toric variety corresponding to a subdivision normal?

Torsors for nonabelian groups and maps to contracted products

Is there an intrinsic Gauss map?

Pushforward of sheaves along finite etale map

Pushforward of structure sheaf along a torsor for a finite group

Geometric quotients of DM stacks by group actions

G Theory Localization Sequence without "quasiseparated"