Sum of All-Pairs Shortest Path Distances in a Planar Graph in Subquadratic Time

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Abstract

We consider the problem of computing the Wiener index of a graph, defined as the sum of distances between all pairs of its vertices. It is an open problem whether the Wiener index of a planar graph can be found in subquadratic time. We solve this problem by presenting an algorithm with O(n^2*log log n/log n) running time and O(n) space requirement where n is the number of vertices of the graph.
Original languageEnglish
Place of PublicationDIKU
Pages1-10
Number of pages10
Publication statusPublished - 2008

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