Results 21 to 30 of about 43,364 (297)

On clique-perfect and K-perfect graphs.

open access: yesArs Comb., 2006
80
Bonomo, Flavia   +3 more
openaire   +5 more sources

Exploration of CPCD number for power graph

open access: yesمجلة بغداد للعلوم, 2023
Recently, complementary perfect corona domination in graphs was introduced. A dominating set S of a graph G is said to be a complementary perfect corona dominating set (CPCD – set) if each vertex in  is either a pendent vertex or a support vertex and ...
S. Anuthiya, G. Mahadevan, C. Sivagnanam
doaj   +1 more source

An induced subgraph characterization of domination perfect graphs [PDF]

open access: yes, 1995
Let γ(G) ι(G) be the domination number and independent domination number of a graph (G), respectively. A graph (G) is called domination perfect if γ(H) = ι(H), for every induced subgraph H of (G).
Vadim E. Zverovich   +5 more
core   +1 more source

Weakly Perfect Graphs of Modules [PDF]

open access: yesControl and Optimization in Applied Mathematics, 2019
In this study, $R$ and $M$ are assumed to be a commutative ring with non-zero identity $M$ and an $R$-module, respectively. Scalar Product Graph of $M$, denoted by $G_R(M)$, is a graph with the vertex-set $M$ and two different vertices $a$ and $b$ in $M$
Mostafa Nouri Jouybari   +2 more
doaj   +1 more source

Planar cycle-extendable graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
For most problems pertaining to perfect matchings, one may restrict attention to matching covered graphs - that is, connected nontrivial graphs with the property that each edge belongs to some perfect matching.
Aditya Y Dalwadi   +3 more
doaj   +1 more source

Independent sets of maximum weight in apple-free graphs [PDF]

open access: yes, 2010
We present the first polynomial-time algorithm to solve the maximum weight independent set problem for apple-free graphs, which is a common generalization of several important classes where the problem can be solved efficiently, such as claw-free graphs,
Lozin, Vadim V.   +2 more
core   +1 more source

All Pairs of Pentagons in Leapfrog Fullerenes Are Nice

open access: yesMathematics, 2020
A subgraph H of a graph G with perfect matching is nice if G−V(H) has perfect matching. It is well-known that all fullerene graphs have perfect matchings and that all fullerene graphs contain some small connected graphs as nice subgraphs.
Tomislav Došlić
doaj   +1 more source

Balancedness of subclasses of circular-arc graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
Graph ...
Flavia Bonomo   +3 more
doaj   +1 more source

Line game-perfect graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
The $[X,Y]$-edge colouring game is played with a set of $k$ colours on a graph $G$ with initially uncoloured edges by two players, Alice (A) and Bob (B). The players move alternately. Player $X\in\{A,B\}$ has the first move. $Y\in\{A,B,-\}$.
Stephan Dominique Andres, Wai Lam Fong
doaj   +1 more source

Perfectness of clustered graphs [PDF]

open access: yesDiscrete Optimization, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Flavia Bonomo   +3 more
openaire   +3 more sources

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