Directed strongly regular graphs from 112-designs

doi:10.1016/j.ejc.2012.01.011

European Journal of Combinatorics

Volume 33, Issue 6, August 2012, Pages 1174-1177

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Abstract

Some families of directed strongly regular graphs with $t = μ$ are constructed by using antiflags of $1 \frac{1}{2}$ -designs.

Highlights

► Directed strongly regular graphs are constructed from antiflags of $1 \frac{1}{2}$ designs. ► Directed strongly regular graphs are constructed from flags of $1 \frac{1}{2}$ -designs. ► Using a non-existence result for directed strongly regular graphs, we determine the existence of a certain $1 \frac{1}{2}$ -design.

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