The halved graph is the Grassmann graph J2(5,2). Note that this is not the bipartite double of J2(5,2).
Number of vertices: | 310 |
Diameter: | 5 |
Intersection array: | {7,6,6,4,4;1,1,3,3,7} |
Spectrum: | 71(3√2)302124(−2)124(−3√2)30(−7)1 |
Automorphism group: | PSL(5,2):2 |
Distance-transitive: | Yes |
Bipartite |
Acknowledgement: contributed by Finnegan Carroll and Mark MacLean.