Characterization of magic graphs
Samuel Jezný, Marián Trenkler (1983)
Czechoslovak Mathematical Journal
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Displaying similar documents to “On suborbital graphs for the normalizer of .”
Characterization of magic graphs
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The edge C₄ graph of some graph classes
Manju K. Menon, A. Vijayakumar (2010)
Discussiones Mathematicae Graph Theory
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The edge C₄ graph of a graph G, E₄(G) is a graph whose vertices are the edges of G and two vertices in E₄(G) are adjacent if the corresponding edges in G are either incident or are opposite edges of some C₄. In this paper, we show that there exist infinitely many pairs of non isomorphic graphs whose edge C₄ graphs are isomorphic. We study the relationship between the diameter, radius and domination number of G and those of E₄(G). It is shown that for any graph G without isolated vertices,...