Errera graph
id:
errera-graph-289-6479632
title:
Errera graph
text:
In the mathematical field of graph theory, the Errera graph is a graph with 17 vertices and 45 edges. Alfred Errera published it in 1921 as a counterexample to Kempe's erroneous proof of the four color theorem; it was named after Errera by Hutchinson & Wagon (1998).
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Errera_graph
date created:
date modified:
2021-11-15T06:07:45Z
main entity:
{"identifier":"Q3115469","url":"https://www.wikidata.org/entity/Q3115469"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/f/fc/Errera_graph_alt.svg","width":380,"height":380}
fields total:
13
integrity:
14