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Algorithms for Generating Strongly Chordal Graphs

Lecture Notes in Computer Science, 2021
Graph generation serves many useful purposes: cataloguing, testing conjectures, to which we would like to add that of producing test instances for graph algorithms. Strongly chordal graphs are a subclass of chordal graphs for which polynomial-time algorithms could be designed for problems which are NP-complete for the parent class of chordal graphs. In
Asish Mukhopadhyay, Mukhopadhyay Asish
exaly   +3 more sources

Linear Time Algorithms on Chordal Bipartite and Strongly Chordal Graphs

Lecture Notes in Computer Science, 2002
Chordal bipartite graphs are introduced to analyze nonsymmetric matrices, and form a large class of perfect graphs. There are several problems, which can be solved efficiently on the class using the characterization by the doubly lexical ordering ofthe bipartite adjacency matrix.
Ryuhei Uehara, Uehara Ryuhei
exaly   +3 more sources

A linear-time algorithm for semitotal domination in strongly chordal graphs

open access: yesDiscrete Applied Mathematics, 2021
In a graph $G=(V,E)$ with no isolated vertex, a dominating set $D \subseteq V$, is called a semitotal dominating set if for every vertex $u \in D$ there is another vertex $v \in D$, such that distance between $u$ and $v$ is at most two in $G$.
Vikash Tripathi   +2 more
semanticscholar   +4 more sources

Odd twists on strongly chordal graphs

Discrete Mathematics, Algorithms and Applications, 2019
Strongly chordal graphs can be characterized as chordal graphs in which every even cycle of length at least [Formula: see text] has an odd chord (a chord whose endpoints are an odd distance apart in the cycle subgraph).
T. McKee
semanticscholar   +2 more sources

Strongly chordal graphs as intersection graphs of trees (Farber's proof revisited)

open access: yesCoRR
In his Ph.D. thesis, Farber proved that every strongly chordal graph can be represented as intersection graph of subtrees of a weighted tree, and these subtrees are ``compatible''.
Therese Biedl
semanticscholar   +3 more sources

Strengthening strongly chordal graphs

Discrete Mathematics, Algorithms and Applications, 2016
An [Formula: see text]-chord of a cycle [Formula: see text] is a chord that forms a new cycle with a length-[Formula: see text] subpath of [Formula: see text] when [Formula: see text] is at most half the length of [Formula: see text]. Define a graph to be [Formula: see text]-strongly chordal if, for every [Formula: see text], every cycle long enough ...
T. McKee
semanticscholar   +2 more sources

Characterizing s-strongly chordal bipartite graphs

Utilitas Mathematica
The strongly chordal graph literature has recently expanded to include the sequentially smaller classes of \(s\)-strongly chordal graphs for \(s = 1, 2, 3,\ldots\) (and the limiting class of majorly chordal graphs).
T. McKee
semanticscholar   +2 more sources

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