Title
Making arbitrary graphs transitively orientable: minimal comparability completions
Abstract
A transitive orientation of an undirected graph is an assignment of directions to its edges so that these directed edges represent a transitive relation between the vertices of the graph. Not every graph has a transitive orientation, but every graph can be turned into a graph that has a transitive orientation, by adding edges. We study the problem of adding an inclusion minimal set of edges to an arbitrary graph so that the resulting graph is transitively orientable. We show that this problem can be solved in polynomial time, and we give a surprisingly simple algorithm for it.
Year
DOI
Venue
2006
10.1007/11940128_43
ISAAC
Keywords
Field
DocType
transitively orientable,transitive relation,inclusion minimal set,undirected graph,polynomial time,transitive orientation,arbitrary graph,resulting graph,minimal comparability completion,simple algorithm
Strength of a graph,Discrete mathematics,Combinatorics,Comparability graph,Transitive reduction,Cycle graph,Null graph,Semi-symmetric graph,Symmetric graph,Mathematics,Complement graph
Conference
Volume
ISSN
ISBN
4288
0302-9743
3-540-49694-7
Citations 
PageRank 
References 
4
0.40
9
Authors
3
Name
Order
Citations
PageRank
Pinar Heggernes184572.39
Federico Mancini2789.79
Charis Papadopoulos315117.75