Displaying similar documents to “A note to independent sets in scheduling”

Decomposition tree and indecomposable coverings

Andrew Breiner, Jitender Deogun, Pierre Ille (2011)

Discussiones Mathematicae Graph Theory

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Let G = (V,A) be a directed graph. With any subset X of V is associated the directed subgraph G[X] = (X,A ∩ (X×X)) of G induced by X. A subset X of V is an interval of G provided that for a,b ∈ X and x ∈ V∖X, (a,x) ∈ A if and only if (b,x) ∈ A, and similarly for (x,a) and (x,b). For example ∅, V, and {x}, where x ∈ V, are intervals of G which are the trivial intervals. A directed graph is indecomposable if all its intervals are trivial. Given an integer k > 0, a directed graph G =...

Centers in line graphs

Martin Knor, Ľudovít Niepel, Ľubomír Šoltés (1993)

Mathematica Slovaca

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