The last subconstituent of the Hemmeter graph

John S. Caughman, IV, Elizabeth J. Hart, Jianmin Ma
2008 Discrete Mathematics  
We prove that when q is any odd prime power, the distance-2 graph on the set of vertices at maximal distance D from any fixed vertex of the Hemmeter graph Hem D (q) is isomorphic to the graph Quad D−1 (q) of quadratic forms on F D−1 q .
doi:10.1016/j.disc.2007.08.029 fatcat:vovbvqhmrnevvispxul3swbtye