Article ID Journal Published Year Pages File Type
4652533 Electronic Notes in Discrete Mathematics 2008 6 Pages PDF
Abstract

A graph is k-linked if any k disjoint vertex-pairs can be joined by k disjoint paths. We slightly improve a lower bound on the linkedness of polytopes, which results in exact values for the minimal linkedness of 7-, 10- and 13-dimensional polytopes.We analyze in detail linkedness of polytopes on at most (6d+7)/5 vertices. In that case, we derive a sharp lower bound on minimal linkedness, and construct examples meeting this lower bound. These examples contain a class of examples due to Gallivan.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics