Title
Minimum Eulerian circuits and minimum de Bruijn sequences
Abstract
Given a digraph (directed graph) with a labeling on its arcs, we study the problem of finding the Eulerian circuit of lexicographically minimum label. We prove that this problem is NP-complete in general, but if the labelling is locally injective (arcs going out from each vertex have different labels), we prove that it is solvable in linear time by giving an algorithm that constructs this circuit. When this algorithm is applied to a de Bruijn graph, it obtains the de Bruijn sequences with lexicographically minimum label.
Year
DOI
Venue
2009
10.1016/j.disc.2007.11.027
Discrete Mathematics
Keywords
Field
DocType
vertex,linear time,de bruijn sequence,etiquette,directed graph,digraph,de bruijn graph,label,np complete problem
Discrete mathematics,Combinatorics,BEST theorem,Vertex (geometry),Directed graph,Eulerian path,De Bruijn graph,De Bruijn sequence,Time complexity,Mathematics,Digraph
Journal
Volume
Issue
ISSN
309
17
Discrete Mathematics
Citations 
PageRank 
References 
5
0.45
8
Authors
2
Name
Order
Citations
PageRank
Martín Matamala115821.63
Eduardo Moreno211514.44