Hedgehog space
id:
hedgehog-space-324-1884264
title:
Hedgehog space
text:
In mathematics, a hedgehog space is a topological space consisting of a set of spines joined at a point. For any cardinal number κ , the κ -hedgehog space is formed by taking the disjoint union of κ real unit intervals identified at the origin. Each unit interval is referred to as one of the hedgehog's spines. A κ -hedgehog space is sometimes called a hedgehog space of spininess κ . The hedgehog space is a metric space, when endowed with the hedgehog metric d = | x − y | if x and y lie in the sa
brand slug:
wiki
category slug:
encyclopedia
description:
Topological space made of a set of spines joined at a point
original url:
https://en.wikipedia.org/wiki/Hedgehog_space
date created:
date modified:
2024-04-07T23:18:30Z
main entity:
{"identifier":"Q4053718","url":"https://www.wikidata.org/entity/Q4053718"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/3/34/Hedgehog_space.svg","width":450,"height":450}
fields total:
13
integrity:
15