List questions from group-schemes

Published on 19 Jan 2024 - 0:00

72

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Algebraic Torus is a group scheme

Published on 22 Jan 2024 - 21:54

53

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Redundancy in the definition of a Toric Variety

Published on 25 Mar 2026 - 5:07

184

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Grouplike Hopf algebras are group rings?

Published on 20 Feb 2024 - 4:21

101

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Is there a "correct" $k$ scheme structure to put on $\coprod_{i=1}^n \operatorname{Spec}(k)$?

Published on 02 Mar 2024 - 18:34

73

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Is a morphism $f:A\rightarrow B$ uniquely determined by the compositions $f\circ g$ for all $g:T\rightarrow A$?

Published on 06 Mar 2024 - 14:06

33

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Affine group schemes

Published on 07 Mar 2024 - 9:26

40

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Translation morphism of Algebraic Groups .

Published on 13 Mar 2024 - 14:10

45

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Extensions and formal smoothness

Published on 28 Mar 2024 - 17:35

96

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Cocommutative k-Hopf algebra finite as k-vector space represents a constant group functor

Published on 11 Feb 2015 - 19:38

71

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Group schemes over valuation rings

Published on 02 Mar 2015 - 20:03

1.1k

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Why are finite group schemes usually assumed flat?

Published on 11 Mar 2015 - 22:35

513

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Category Group has unique identity morphism

Published on 01 Apr 2015 - 22:33

303

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Are there invariants of formal group laws other than height?

Published on 25 Mar 2026 - 3:03

171

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Lifting points of étale group scheme.

Published on 24 May 2015 - 7:37

List Question

Derivatives of morphisms of linear algebraic groups

Algebraic Torus is a group scheme

Redundancy in the definition of a Toric Variety

Grouplike Hopf algebras are group rings?

Is there a "correct" $k$ scheme structure to put on $\coprod_{i=1}^n \operatorname{Spec}(k)$?

Is a morphism $f:A\rightarrow B$ uniquely determined by the compositions $f\circ g$ for all $g:T\rightarrow A$?

Affine group schemes

Translation morphism of Algebraic Groups .

Extensions and formal smoothness

Cocommutative k-Hopf algebra finite as k-vector space represents a constant group functor

Group schemes over valuation rings

Why are finite group schemes usually assumed flat?

Category Group has unique identity morphism

Are there invariants of formal group laws other than height?

Lifting points of étale group scheme.

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