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An example of graph limits of growing sequences of random graphs

Combinatorics 2013-11-13 v2 Disordered Systems and Neural Networks

Abstract

We consider a class of growing random graphs obtained by creating vertices sequentially one by one: at each step, we choose uniformly the neighbours of the newly created vertex; its degree is a random variable with a fixed but arbitrary distribution, depending on the number of existing vertices. Examples from this class turn out to be the ER random graph, a natural random threshold graph, etc. By working with the notion of graph limits, we define a kernel which, under certain conditions, is the limit of the growing random graph. Moreover, for a subclass of models, the growing graph on any given n vertices has the same distribution as the random graph with n vertices that the kernel defines. The motivation stems from a model of graph growth whose attachment mechanism does not require information about properties of the graph at each iteration.

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Cite

@article{arxiv.1206.4586,
  title  = {An example of graph limits of growing sequences of random graphs},
  author = {Svante Janson and Simone Severini},
  journal= {arXiv preprint arXiv:1206.4586},
  year   = {2013}
}

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12 pages