Results 11 to 20 of about 3,613,364 (137)
Maximal independence and regularity of Al/Si distributions in disordered phyllosilicates 2:1. [PDF]
The distribution of aluminium cations in disordered phyllosilicates is analysed according to the concepts of maximal independence and regularity.As an extension of previous works, we analyse regularity in disordered Al/Si distributions in phyllosilicates 2:1. The method is based on an analysis of maximal independent sets in a labelled quotient graph of
Moreira de Oliveira M, Eon JG.
europepmc +2 more sources
Local certification of forbidden subgraphs [PDF]
Detecting specific structures in a network has been a very active theme of research in distributed computing for at least a decade. In this paper, we start the study of subgraph detection from the perspective of local certification. Remember that a local
Zeitoun, Sébastien +4 more
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On minimal forbidden subgraph characterizations of balanced graphs [PDF]
Artículo de publicación ISIA graph is balanced if its clique-matrix contains no edge–vertex incidence matrix of an odd chordless cycle as a submatrix.
Safe, Martín D. +9 more
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Planar graph coloring with forbidden subgraphs : why trees and paths are dangerous [PDF]
We consider the problem of coloring a planar graph with the minimum number of colors such that each color class avoids one or more forbidden graphs as subgraphs. We perform a detailed study of the computational complexity of this problem.
Penttonen, M. +5 more
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Small bipartite subgraph polytopes [PDF]
We compute a complete linear description of the bipartite subgraph polytope, for up to seven nodes, and a conjectured complete description for eight nodes.
Galli, L, Letchford, A N
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The Ryjáček Closure and a Forbidden Subgraph [PDF]
The Ryjáček closure is a powerful tool in the study of Hamiltonian properties of claw-free graphs. Because of its usefulness, we may hope to use it in the classes of graphs defined by another forbidden subgraph. In this note, we give a negative answer to
Xiong Liming +3 more
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A semi-induced subgraph characterization of upper domination perfect graphs [PDF]
Let β(G) and Γ(G) be the independence number and the upper domination number of a graph G, respectively. A graph G is called Γ-perfect if β(H) = Γ(H), for every induced subgraph H of G. The class of Γ-perfect graphs generalizes such well-known classes of
Zverovich, Vadim +3 more
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On Sequential Heuristic Methods for the Maximum Independent Set Problem
We consider sequential heuristics methods for the Maximum Independent Set (MIS) problem. Three classical algorithms, VO [11], MIN [12], or MAX [6] , are revisited. We combine Algorithm MIN with the α-redundant vertex technique[3].
Lê Ngoc C. +2 more
doaj +1 more source
Heavy subgraph pairs for traceability of block-chains
A graph is called traceable if it contains a Hamilton path, i.e., a path containing all its vertices. Let G be a graph on n vertices. We say that an induced subgraph of G is o−1-heavy if it contains two nonadjacent vertices which satisfy an Ore-type ...
Li Binlong +2 more
doaj +1 more source
On characterizing game-perfect graphs by forbidden induced subgraphs [PDF]
A graph $G$ is called $g$-perfect if, for any induced subgraph $H$ of $G$, the game chromatic number of $H$ equals the clique number of $H$. A graph $G$ is called $g$-col-perfect if, for any induced subgraph $H$ of $G$, the game coloring number of $H ...
Andres, Stephan Dominique
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