Title
Triangulating three-colored graphs in linear time and linear space
Abstract
Kannan and Warnow [Triangulating Three-Colored Graphs, Proc. 2nd SODA, 1991, pp. 337-343 and SIAM J. Discrete Math., 5 (1992), pp. 249-258] describe an algorithm to decide whether a three-colored graph can be triangulated so that all the edges connect vertices of different colors. This problem is motivated by a problem in evolutionary biology. Kannan and Warnow have two implementation strategies for their algorithm: one uses slightly superlinear time, while the other uses linear time but quadratic space. We note that three-colored triangulatable graphs are always planar, and we use this fact to modify Kannan and Warnow's algorithm to obtain an algorithm that uses both linear time and linear space.
Year
DOI
Venue
1993
10.1137/0406023
SIAM J. Discrete Math.
Keywords
Field
DocType
three-colored graph,linear time,linear space,planar graphs
Discrete mathematics,Combinatorics,Colored,Vertex (geometry),Linear space,Quadratic equation,Triangulation,Triangulation (social science),Time complexity,Planar graph,Mathematics
Journal
Volume
Issue
ISSN
6
2
0895-4801
Citations 
PageRank 
References 
9
1.37
2
Authors
2
Name
Order
Citations
PageRank
Ramana M. Idurys120424.03
Alejandro A. Schäffer2827136.66