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Representations of directed strongly regular graphs. (English) Zbl 1121.05078
Summary: We develop a theory of representations in \(\mathbb R^m\) for directed strongly regular graphs, which gives a new proof of a nonexistence condition of L. K. Jørgensen [Discrete Math. 264, 111–126 (2003; Zbl 1014.05074)]. We also describe some new constructions.

MSC:
05C62 Graph representations (geometric and intersection representations, etc.)
05E30 Association schemes, strongly regular graphs
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