Group-scheme action
id:
group-scheme-action-314-481759
title:
Group-scheme action
text:
In algebraic geometry, an action of a group scheme is a generalization of a group action to a group scheme. Precisely, given a group S-scheme G, a left action of G on an S-scheme X is an S-morphism such that (associativity) σ ∘ = σ ∘ , where m : G × S G → G is the group law,
(unitality) σ ∘ = 1 X , where e : S → G is the identity section of G. A right action of G on X is defined analogously. A scheme equipped with a left or right action of a group scheme G is called a G-scheme. An equivariant mo
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wiki
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encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Group-scheme_action
date created:
date modified:
2020-02-14T15:58:19Z
main entity:
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13
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