Tunnel number
id:
tunnel-number-305-18277972
title:
Tunnel number
text:
In mathematics, the tunnel number of a knot, as first defined by Bradd Clark, is a knot invariant, given by the minimal number of arcs that must be added to the knot so that the complement becomes a handlebody. The tunnel number can equally be defined for links. The boundary of a regular neighbourhood of the union of the link and its tunnels forms a Heegaard splitting of the link exterior.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Tunnel_number
date created:
date modified:
2021-07-05T10:16:56Z
main entity:
{"identifier":"Q16994816","url":"https://www.wikidata.org/entity/Q16994816"}
image:
fields total:
13
integrity:
13