11,112 research outputs found

    Induced subgraphs in sparse random graphs with given degree sequence

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    For any S⊂[n]S\subset [n], we compute the probability that the subgraph of Gn,d\mathcal{G}_{n,d} induced by SS is a given graph HH on the vertex set SS. The result holds for any d=o(n1/3)d=o(n^{1/3}) and is further extended to Gd\mathcal{G}_{{\bf d}}, the probability space of random graphs with a given degree sequence d\bf d.Comment: 31 pages, 11 figure

    Properties of Random Graphs with Hidden Color

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    We investigate in some detail a recently suggested general class of ensembles of sparse undirected random graphs based on a hidden stub-coloring, with or without the restriction to nondegenerate graphs. The calculability of local and global structural properties of graphs from the resulting ensembles is demonstrated. Cluster size statistics are derived with generating function techniques, yielding a well-defined percolation threshold. Explicit rules are derived for the enumeration of small subgraphs. Duality and redundancy is discussed, and subclasses corresponding to commonly studied models are identified.Comment: 14 pages, LaTeX, no figure
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