Schanuel's lemma
id:
schanuel-s-lemma-167-17933242
title:
Schanuel's lemma
text:
In mathematics, especially in the area of algebra known as module theory, Schanuel's lemma, named after Stephen Schanuel, allows one to compare how far modules depart from being projective. It is useful in defining the Heller operator in the stable category, and in giving elementary descriptions of dimension shifting.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Schanuel%27s_lemma
date created:
2008-02-04T04:49:20Z
date modified:
2024-08-30T15:53:37Z
main entity:
{"identifier":"Q1816943","url":"https://www.wikidata.org/entity/Q1816943"}
image:
fields total:
13
integrity:
14