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arXiv · 2207.13278

Primary Non-QE Graphs on Six Vertices

Nobuaki Obata
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Abstract

A connected graph is called of non-QE class if it does not admit a quadratic embedding in a Euclidean space. A non-QE graph is called primary if it does not contain a non-QE graph as an isometrically embedded proper subgraph. The graphs on six vertices are completely classified into the classes of QE graphs, of non-QE graphs, and of primary non-QE graphs.

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Nobuaki Obata. 2022-09-10. Primary Non-QE Graphs on Six Vertices. https://doi.org/10.4036/iis.2023.r.01

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