Bivariant theory
id:
bivariant-theory-247-5465706
title:
Bivariant theory
text:
In mathematics, a bivariant theory was introduced by Fulton and MacPherson, in order to put a ring structure on the Chow group of a singular variety, the resulting ring called an operational Chow ring. On technical levels, a bivariant theory is a mix of a homology theory and a cohomology theory. In general, a homology theory is a covariant functor from the category of spaces to the category of abelian groups, while a cohomology theory is a contravariant functor from the category of (nice) spaces
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Bivariant_theory
date created:
date modified:
2024-03-04T06:56:05Z
main entity:
{"identifier":"Q85747457","url":"https://www.wikidata.org/entity/Q85747457"}
image:
fields total:
13
integrity:
13