Direct image functor
id:
direct-image-functor-274-7639726
title:
Direct image functor
text:
In mathematics, the direct image functor is a construction in sheaf theory that generalizes the global sections functor to the relative case. It is of fundamental importance in topology and algebraic geometry. Given a sheaf F defined on a topological space X and a continuous map f: X → Y, we can define a new sheaf f∗F on Y, called the direct image sheaf or the pushforward sheaf of F along f, such that the global sections of f∗F is given by the global sections of F. This assignment gives rise to
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Direct_image_functor
date created:
date modified:
2022-12-15T22:18:10Z
main entity:
{"identifier":"Q5280340","url":"https://www.wikidata.org/entity/Q5280340"}
image:
fields total:
13
integrity:
13