Mulder, H.M.; Nebesky, L. - Erasmus University Rotterdam, Econometric Institute - 2008
being between u and v has been studied also in the guise of the notion of betweenness.
Various types of betweenness have … been proposed de ned by slightly di erent sets of
betweenness axioms, see e.g. [20, 9, 4, 19, 7]. Of these the geodetic … betweenness may
present an alternative approach to the results below.
In Section 2 we introduce organizing functions, and present …