Results 11 to 20 of about 55,028 (193)

Strongly orderable graphs A common generalization of strongly chordal and chordal bipartite graphs

open access: yesDiscrete Applied Mathematics, 2000
In this paper those graphs are studied for which a so-called strong ordering of the vertex set exists. This class of graphs, called strongly orderable graphs, generalizes the strongly chordal graphs and the chordal bipartite graphs in a quite natural way.
Feodor F Dragan
exaly   +3 more sources

Characterization of Super Strongly Perfect Graphs in Chordal and Strongly Chordal Graphs

open access: yesMapana - Journal of Sciences, 2012
A Graph G is Super Strongly Perfect Graph if every induced sub graph H of G possesses a minimal dominating set that meets all the maximal complete sub graphs of H.
Amutha, A, Jeya Jothi, R Mary
core   +3 more sources

A new characterization of strongly chordal graphs

open access: yesDiscrete Mathematics, 1999
The ‘strength’ of an edge or cycle is the number of maximal complete subgraphs it is in. Strongly chordal graphs are characterized by every cycle of edges of strengths at least k with no chord of strength at least k always itself having strength at least
McKee, Terry A.
core   +3 more sources

Domination, independent domination, and duality in strongly chordal graphs

open access: yesDiscrete Applied Mathematics, 1984
We present polynomial algorithms to locate minimum weight dominating sets and independent dominating sets in strongly chordal graphs. We utilize an intimate relationship between strongly chordal graphs and totally balanced matrices to show that the ...
Farber, Martin, Martin Farber
core   +3 more sources

All-pairs-shortest-length on strongly chordal graphs

open access: yesDiscrete Applied Mathematics, 1996
The all-pairs-shortest-length (APSL) problem has been quite rigorously studied on various graphs. On general graphs, solutions are known for both the unweighted and weighted cases.
Rangan, C.Pandu, Balachandhran, V.
core   +3 more sources

Finding dominating cliques efficiently, in strongly chordal graphs and undirected path graphs

open access: yesDiscrete Mathematics, 1990
We study a new version of the domination problem in which the dominating set is required to be a clique. The minimum dominating clique problem is NP-complete for split graphs and, hence, for chordal graphs. We show that for two other important subclasses
Kratsch, Dieter, Dieter Kratsch
core   +3 more sources

Cycle Extendability of Hamiltonian Strongly Chordal Graphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2020
In 1990, Hendry conjectured that all Hamiltonian chordal graphs are cycle extendable. After a series of papers confirming the conjecture for a number of graph classes, the conjecture is yet refuted by Lafond and Seamone in 2015.
Guozhen Rong   +3 more
semanticscholar   +5 more sources

Semi-dynamic Algorithms for Strongly Chordal Graphs [PDF]

open access: yesDiscrete Mathematics, Algorithms and Applications, 2020
Within the broad ambit of algorithm design, the study of dynamic graph algorithms continues to be a thriving area of research. Commensurate with this interest is an extensive literature on the topic. Not surprisingly, dynamic algorithms for all varieties
Md. Zamilur Rahman, A. Mukhopadhyay
semanticscholar   +4 more sources

Strongly chordal and chordal bipartite graphs are sandwich monotone

open access: yesJournal of Combinatorial Optimization, 2011
A graph class is sandwich monotone if, for every pair of its graphs G (1)=(V,E (1)) and G (2)=(V,E (2)) with E (1)aS,E (2), there is an ordering e (1),aEuro broken vertical bar,e (k) of the edges in E (2)a-E (1) such that G=(V,E (1)a(a){e (1),aEuro ...
Heggernes, P.   +3 more
core   +5 more sources

Mutual transferability for (F,B,R)-domination on strongly chordal graphs and cactus graphs

open access: yesDiscrete Applied Mathematics, 2019
This paper studies a variation of domination in graphs called ( F , B , R ) -domination. Let G = ( V , E ) be a graph and V be the disjoint union of F , B , and R , where F consists of free vertices, B consists of bound vertices, and R consists of ...
Chiuyuan Chen
exaly   +2 more sources

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