Question

Morphism of affine group schemes gives a morphism of hopf-algebras? (But not by Yoneda I guess?)

score 186 · Answer 1 · 2019-07-20 12:44:22

186

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Morphism of affine group schemes gives a morphism of hopf-algebras? (But not by Yoneda I guess?)

Published on 20 Jul 2019 - 12:44

score 76 · Answer 2 · 2026-03-25 01:18:25

76

Views

Question on isogeny of abelian varieties and principal homogeneous spaces

Published on 25 Mar 2026 - 1:18

score 88 · Answer 3 · 2019-08-15 16:18:47

88

Views

Is every $\mathcal O$-structure an $\mathcal O$-group scheme?

Published on 15 Aug 2019 - 16:18

score 47 · Answer 4 · 2026-03-25 07:44:38

47

Views

if an Affine group scheme G isn't solvable then G(R) isn't solvable for some R

Published on 25 Mar 2026 - 7:44

score 83 · Answer 5 · 2019-09-19 21:12:49

83

Views

Mumford's Geometric Invariant Theory proof of proposition 0.1

Published on 19 Sep 2019 - 21:12

score 67 · Answer 6 · 2019-09-25 09:40:46

67

Views

Example of commutative Hopf algebra over the integers

Published on 25 Sep 2019 - 9:40

score 712 · Answer 7 · 2014-04-10 08:26:16

712

Views

Is the fiber product of the connected component of a group scheme connected?

Published on 10 Apr 2014 - 8:26

score 558 · Answer 8 · 2014-04-14 21:08:49

558

Views

Quotient of group schemes and its rational points.

Published on 14 Apr 2014 - 21:08

score 116 · Answer 9 · 2014-06-05 12:56:01

116

Views

Group schemes decomposition

Published on 05 Jun 2014 - 12:56

score 94 · Answer 10 · 2014-06-12 17:16:27

94

Views

Group structure at $k$-valued points induces a group scheme?

Published on 12 Jun 2014 - 17:16

score 201 · Answer 11 · 2014-07-27 15:47:10

201

Views

Isomorphism of affine group schemes of rank 2

Published on 27 Jul 2014 - 15:47

score 179 · Answer 12 · 2014-09-17 11:19:27

179

Views

short exact sequences of linear algebraic groups and $K$-forms

Published on 17 Sep 2014 - 11:19

score 109 · Answer 13 · 2014-09-25 12:54:46

109

Views

Split extension of linear algebraic groups given by unipotent radicals and reductive groups

Published on 25 Sep 2014 - 12:54

score 138 · Answer 14 · 2014-10-06 21:10:37

138

Views

Quotientes of afine group schemes

Published on 06 Oct 2014 - 21:10

score 262 · Answer 15 · 2014-10-13 11:41:52

262

Views

Base change is exact for algebraic groups

Published on 13 Oct 2014 - 11:41

List Question

Morphism of affine group schemes gives a morphism of hopf-algebras? (But not by Yoneda I guess?)

Question on isogeny of abelian varieties and principal homogeneous spaces

Is every $\mathcal O$-structure an $\mathcal O$-group scheme?

if an Affine group scheme G isn't solvable then G(R) isn't solvable for some R

Mumford's Geometric Invariant Theory proof of proposition 0.1

Example of commutative Hopf algebra over the integers

Is the fiber product of the connected component of a group scheme connected?

Quotient of group schemes and its rational points.

Group schemes decomposition

Group structure at $k$-valued points induces a group scheme?

Isomorphism of affine group schemes of rank 2

short exact sequences of linear algebraic groups and $K$-forms

Split extension of linear algebraic groups given by unipotent radicals and reductive groups

Quotientes of afine group schemes

Base change is exact for algebraic groups

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