Universal homeomorphism
id:
universal-homeomorphism-318-17871150
title:
Universal homeomorphism
text:
In algebraic geometry, a universal homeomorphism is a morphism of schemes f : X → Y such that, for each morphism Y ′ → Y , the base change X × Y Y ′ → Y ′ is a homeomorphism of topological spaces. A morphism of schemes is a universal homeomorphism if and only if it is integral, radicial and surjective. In particular, a morphism of locally of finite type is a universal homeomorphism if and only if it is finite, radicial and surjective. For example, an absolute Frobenius morphism is a universal ho
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Universal_homeomorphism
date created:
date modified:
2019-08-11T00:05:38Z
main entity:
{"identifier":"Q48972036","url":"https://www.wikidata.org/entity/Q48972036"}
image:
fields total:
13
integrity:
13