Bipartite biregular Moore graphs

Gabriela Araujo-Pardo, Cristina Dalfó, Miguel Ángel Fiol +1

A bipartite graph $G=(V,E)$ with $V=V_1\cup V_2$ is biregular if all the vertices of a stable set $V_i$ have the same degree $r_i$ for $i=1,2$. In this paper, we give an improved n…