A note on [D. G. Higman 1988 : Strongly regular designs and coherent configurations of type $[{3\atop {\;}}\;\;{2\atop 3}]$]
Akihide Hanaki·2021-02-22·via math.CO updates on arXiv.org
In 1988, D. G. Higman gave properties of parameters of strongly regular designs without proof. It included an error. We will give proofs and correct the error.