Results 1 to 10 of about 1,050,148 (230)

Graph isomorphism completeness for chordal bipartite graphs and strongly chordal graphs

open access: yesDiscrete Applied Mathematics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ryuhei Uehara
exaly   +3 more sources

Connected graph searching in chordal graphs

open access: yesDiscrete Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicolas Nisse
exaly   +3 more sources

Edge erasures and chordal graphs [PDF]

open access: yesElectronic Journal of Graph Theory and Applications, 2021
We prove several results about chordal graphs and weighted chordal graphs by focusing on exposed edges. These are edges that are properly contained in a single maximal complete subgraph.
Jared Culbertson   +2 more
doaj   +4 more sources

The square of a chordal graph

open access: yesDiscrete Mathematics, 1994
The authors characterize those multigraphs which are squares of chordal graphs and develop an algorithm for producing the unique square root from its squared chordal graph.
F. Harary, T. McKee
semanticscholar   +3 more sources

The leafage of a chordal graph

open access: yesDiscussiones Mathematicae Graph Theory, 1998
The leafage l(G) of a chordal graph G is the minimum number of leaves of a tree in which G has an intersection representation by subtrees. We obtain upper and lower bounds on l(G) and compute it on special classes.
In-Jen Lin, T. McKee, D. West
semanticscholar   +3 more sources

On chordal graph and line graph squares [PDF]

open access: yesDiscrete Applied Mathematics, 2018
In this work we investigate the chordality of squares and line graph squares of graphs. We prove a sufficient condition for the chordality of squares of graphs not containing induced cycles of length at least five. Moreover, we characterize the chordality of graph squares by forbidden subgraphs.
Sebastian Wiederrecht
exaly   +3 more sources

Chordal Graph Models of Contingency Tables

open access: yesComputers and Mathematics With Applications, 1997
Chordal graph theory has recently found application by statisticians in the analysis of contingency tables. Specifically, what are called “decomposable loglinear models” correspond exactly to chordal graphs.
H. Khamis, T. McKee
exaly   +2 more sources

The Neighborhood Polynomial of Chordal Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2022
We study the neighborhood polynomial and the complexity of its computation for chordal graphs. The neighborhood polynomial of a graph is the generating function of subsets of its vertices that have a common neighbor.
Helena Bergold   +2 more
doaj   +1 more source

The clique-separator graph for chordal graphs

open access: yesDiscrete Applied Mathematics, 2009
Louis Ibarra
exaly   +2 more sources

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