Normal invariant
id:
normal-invariant-308-12709594
title:
Normal invariant
text:
In mathematics, a normal map is a concept in geometric topology due to William Browder which is of fundamental importance in surgery theory. Given a Poincaré complex X, a normal map on X endows the space, roughly speaking, with some of the homotopy-theoretic global structure of a closed manifold. In particular, X has a good candidate for a stable normal bundle and a Thom collapse map, which is equivalent to there being a map from a manifold M to X matching the fundamental classes and preserving
brand slug:
wiki
category slug:
encyclopedia
description:
Concept in geometric topology
original url:
https://en.wikipedia.org/wiki/Normal_invariant
date created:
date modified:
2023-02-02T02:12:23Z
main entity:
{"identifier":"Q7051812","url":"https://www.wikidata.org/entity/Q7051812"}
image:
fields total:
13
integrity:
14