Math 2.0

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.

Where this leads

3 pages build on this one.

Further reading

  1. Web https://en.wikipedia.org/wiki/%C3%89tale_morphism
About this page
TagH84VHC8PX2
URIm2://H84VHC8PX2
Kindconcept
WritingW0 stub
MSC14B25, 14A15
SpecializesSmooth morphism, Unramified morphism
Same as

Markdown · JSON · Edit on GitHub

What this page needs for W1

  • a source with a locator (0 of 1)

The writing levels say how complete the text of a page is. They do not measure its truth.

What links here

Used by

Definitions