Algebraic geometry Schemes Concept
Étale morphism
Summary
An étale morphism of schemes is a morphism that is flat, unramified and locally of finite presentation. It is the algebraic analogue of a local diffeomorphism, or of a covering map in topology. Étale morphisms are the open sets of the étale topology, which gives étale cohomology and the étale fundamental group.
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About this page
| Tag | H84VHC8PX2 |
|---|---|
| URI | m2://H84VHC8PX2 |
| Kind | concept |
| Writing | W0 stub |
| MSC | 14B25, 14A15 |
| Specializes | Smooth morphism, Unramified morphism |
| Same as |
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