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arXiv · 2603.08106

A new proof of Delahan's induced-universality result

Jonathan Chappelon
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Abstract

We give a short and self-contained proof of Delahan's theorem stating that every simple graph on $n$ vertices occurs as an induced subgraph of a Steinhaus graph on $\frac{n(n-1)}{2}+1$ vertices. This new proof is obtained by considering the notion of generating index sets for Steinhaus triangles.

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Jonathan Chappelon. 2026-03-09. A new proof of Delahan's induced-universality result. https://arxiv.org/abs/2603.08106

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