Article ID Journal Published Year Pages File Type
4652349 Electronic Notes in Discrete Mathematics 2009 5 Pages PDF
Abstract

We consider the problem of minimizing the diameter of an orientation of a planar graph. A result of Chvátal and Thomassen shows that for general graphs, it is NP-complete to decide whether a graph can be oriented so that its diameter is at most two. In contrast to this, for each constant l, we describe an algorithm that decides if a planar graph G has an orientation with diameter at most l and runs in time O(c|V|), where c depends on l.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics