%0 Journal Article
%T The basis digraphs of p-schemes
%A Ilia Ponomarenko
%A Amir Rahnamai Barghi
%J Mathematics
%D 2007
%I arXiv
%X It is proved that association schemes with bipartite basis graphs are exactly 2-schemes. This result follows from a characterization of p-schemes for an arbitrary prime p in terms of basis digraphs.
%U http://arxiv.org/abs/0710.0046v1