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» Recognizing Perfect 2-Split Graphs
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SIAMDM
2000
77views more  SIAMDM 2000»
13 years 4 months ago
Recognizing Perfect 2-Split Graphs
A graph is a split graph if its vertices can be partitioned into a clique and a stable set. A graph is a k-split graph if its vertices can be partitioned into k sets, each of which...
Chính T. Hoàng, Van Bang Le
FAW
2007
Springer
115views Algorithms» more  FAW 2007»
13 years 11 months ago
An O ( nm )-Time Certifying Algorithm for Recognizing HHD-Free Graphs
In this paper, we consider the recognition problem on a class of perfectly orderable graphs, namely, the HHD-free graphs, i.e., graphs that do not contain any induced subgraph iso...
Stavros D. Nikolopoulos, Leonidas Palios
WG
2004
Springer
13 years 10 months ago
Recognizing HHD-free and Welsh-Powell Opposition Graphs
In this paper, we consider the recognition problem on two classes of perfectly orderable graphs, namely, the HHD-free and the Welsh-Powell opposition graphs (or WPO-graphs). In par...
Stavros D. Nikolopoulos, Leonidas Palios
JGAA
2006
85views more  JGAA 2006»
13 years 4 months ago
A Survey of the Algorithmic Properties of Simplicial, Upper Bound and Middle Graphs
Three classes of graphs, simplicial, upper bound, and middle graphs, have been known for some time, but many of their algorithmic properties have not been published. The definitio...
Grant A. Cheston, Tjoen Seng Jap