Cores of Geometric Graphs

Details Cores of Geometric Graphs Cores of Geometric Graphs

2008-06-07

arxiv.org/abs/0806.1300v1

Mathematics

Combinatorics

12 pages

Scientific paper

Cameron and Kazanidis have recently shown that rank-3 graphs are either cores or have complete cores, and they asked whether this holds for all strongly regular graphs. We prove that this is true for the point graphs and line graphs of generalized quadrangles and that when the number of points is sufficiently large, it is also true for the block graphs of Steiner systems and orthogonal arrays.

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