Geodesic
Two distance-regular graphs
Journal of Algebraic Combinatorics, Tome 36 (2012) no. 3, pp. 403-407.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We construct two families of distance-regular graphs, namely the subgraph of the dual polar graph of type B $_{3}(q)$ induced on the vertices far from a fixed point, and the subgraph of the dual polar graph of type D $_{4}(q)$ induced on the vertices far from a fixed edge. The latter is the extended bipartite double of the former.
Keywords: distance-regular graph, dual polar graph, extended bipartite double 
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Brouwer, Andries E.; Pasechnik, Dmitrii V. Two distance-regular graphs. Journal of Algebraic Combinatorics, Tome 36 (2012) no. 3, pp. 403-407. http://geodesic.mathdoc.fr/item/JAC_2012__36_3_a4/