;
Vera Sacristán
[2]
;
Maria Saumell
[2]
México
Barcelona, España
, Javier Tejel Altarriba
, 2009, ISBN 978-84-92774-11-1, págs. 151-156We study the number of crossings among edges of some higher order proximity graphs of the family of the Delaunay graph. That is, given a set P of n points in the Euclidean plane, we give lower and upper bounds on the minimum and the maximum number of crossings that these geometric graphs defined on P have.
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