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The real equiangular tight frames obtained from rank $3$ graphs (2202.09858v2)
Published 20 Feb 2022 in math.CO
Abstract: We present all nontrivial real equiangular tight frames ${\varphi_m}_{m=1}M$ in $\mathbb{R}N$ obtained as spherical embeddings of primitive rank $3$ graphs on $M$ vertices, and those such that one of their associated $M$ strongly regular graphs on $M-1$ vertices is a primitive rank $3$ graph.
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