Mulder, H.M.

graph function vertex axiom vertice lemma proof graph g transit strategy theorem result profile location consensus mulder antimedian property transit function network characterization element interval function interval neighbor majority subgraph length structure theory system distance betweennes split competence center path function consensus function weight class problem location function cycle number majority strategy file π client example block section paper signpost system median signpost vertex x approach entrepreneurship plurality strategy transit functions plurality hypercube algorithm corollary instance mcmorri convexity point ascent hill weight function study vertex v geodesic operation transit function r path function j semilattice induction satis fies axioms ascent connection