Journal of Algebraic Combinatorics

, Volume 36, Issue 3, pp 403–407

Two distance-regular graphs

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Abstract

We construct two families of distance-regular graphs, namely the subgraph of the dual polar graph of type B3(q) induced on the vertices far from a fixed point, and the subgraph of the dual polar graph of type D4(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 

Copyright information

© The Author(s) 2011

Authors and Affiliations

  1. 1.Dept. of Math.Techn. Univ. EindhovenEindhovenNetherlands
  2. 2.School of Physical and Mathematical SciencesNanyang Technological UniversitySingaporeSingapore

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