Postnikov square
id:
postnikov-square-286-4743037
title:
Postnikov square
text:
In algebraic topology, a Postnikov square is a certain cohomology operation from a first cohomology group H1 to a third cohomology group H3, introduced by Postnikov (1949). Eilenberg (1952) described a generalization taking classes in Ht to H2t+1.
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Postnikov_square
date created:
date modified:
2021-12-20T03:20:58Z
main entity:
{"identifier":"Q7234407","url":"https://www.wikidata.org/entity/Q7234407"}
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fields total:
13
integrity:
13