TITLE

# A Dimension 6 Graph with Minimum Edge-set

AUTHOR(S)
Chaffee, Joe; Noble, Matt
PUB. DATE
November 2017
SOURCE
Graphs & Combinatorics;Nov2017, Vol. 33 Issue 6, p1565
SOURCE TYPE
DOC. TYPE
Article
ABSTRACT
The dimension of a graph G is defined to be the minimum n such that G has a representation as a unit-distance graph in $${{\mathbb {R}}}^n$$ . In this article, we show that a dimension 6 graph with minimum edge-set has exactly 21 edges, with this minimum realized only in the case of the complete graph $$K_7$$ . This result answers a higher-dimensional analogue of a question posed by Paul ErdÅ‘s and presented by Alexander Soifer in The Mathematical Coloring Book.
ACCESSION #
126308050

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