Results 31 to 40 of about 756 (218)

Polarity of chordal graphs

open access: yesDiscrete Applied Mathematics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tínaz Ekim   +3 more
openaire   +1 more source

On the multipacking number of grid graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
In 2001, Erwin introduced broadcast domination in graphs. It is a variant of classical domination where selected vertices may have different domination powers. The minimum cost of a dominating broadcast in a graph $G$ is denoted $\gamma_b(G)$.
Laurent Beaudou, Richard C. Brewster
doaj   +1 more source

Representations of Edge Intersection Graphs of Paths in a Tree [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
Let $\mathcal{P}$ be a collection of nontrivial simple paths in a tree $T$. The edge intersection graph of $\mathcal{P}$, denoted by EPT($\mathcal{P}$), has vertex set that corresponds to the members of $\mathcal{P}$, and two vertices are joined by an ...
Martin Charles Golumbic   +2 more
doaj   +1 more source

Minimum Eccentricity Shortest Paths in some Structured Graph Classes

open access: yesJournal of Graph Algorithms and Applications, 2016
We investigate the Minimum Eccentricity Shortest Path problem in some structured graph classes. It asks for a given graph to find a shortest path with minimum eccentricity.
Feodor Dragan, Arne Leitert
doaj   +1 more source

Generating subgraphs in chordal graphs

open access: yesDiscrete Applied Mathematics, 2023
13 pages, 1 figure.
Vadim E. Levit, David Tankus
openaire   +2 more sources

Clique Graphs of Chordal and Path Graphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 1994
Clique graphs of chordal and (undirected) path graphs are characterized. The clique graph of a graph \(G\) is the intersection graph of maximal cliques of \(G\). A chordal graph is the intersection graph of subtrees of a tree. A path graph is the intersection graph of paths of a tree. (Given a family \(F\) of subsets, the intersection graph of \(F\) is
Jayme Luiz Szwarcfiter   +1 more
openaire   +2 more sources

Graphs of Bounded Chordality

open access: yesThe Electronic Journal of Combinatorics
 A hole in a graph is an induced subgraph which is a cycle of length at least four. A graph is chordal if it contains no holes. Following McKee and Scheinerman (1993), we define the chordality of a graph $G$ to be the minimum number of chordal graphs on $V(G)$ such that the intersection of their edge sets is equal to $E(G)$.
Aristotelis Chaniotis   +2 more
openaire   +2 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.
Frank Harary, Terry A. McKee
openaire   +1 more source

Reconfiguration graphs for vertex colourings of chordal and chordal bipartite graphs [PDF]

open access: yesJournal of Combinatorial Optimization, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marthe Bonamy   +4 more
openaire   +3 more sources

The leafage of a chordal graph

open access: yesDiscussiones Mathematicae Graph Theory, 1998
19 pages, 3 ...
In-Jen Lin   +2 more
openaire   +2 more sources

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