{ "id": "1910.13227", "version": "v1", "published": "2019-10-29T12:37:30.000Z", "updated": "2019-10-29T12:37:30.000Z", "title": "Critical scaling limits of the random intersection graph", "authors": [ "Lorenzo Federico" ], "comment": "30 pages, no figures", "categories": [ "math.PR" ], "abstract": "We analyse the scaling limit of the sizes of the largest components of the Random Intersection Graph $G(n,m,p)$ close to the critical point $p=\\frac{1}{\\sqrt{nm}}$, when the numbers $n$ of individuals and $m$ of communities have different orders of magnitude. We find out that if $m \\gg n$, then the scaling limit is identical to the one of the \\ER Random Graph (ERRG), while if $n \\gg m$ the critical exponent is similar to that of Inhomogeneous Random Graphs with heavy-tailed degree distributions, yet the rescaled component sizes have the same limit in distribution as in the ERRG. This suggests the existence of a wide universality class of inhomogeneous random graph models such that in the critical window the largest components have sizes of order $n^{\\rho}$ for some $\\rho \\in (1/2,2/3]$, which depends on some parameter of the graph.", "revisions": [ { "version": "v1", "updated": "2019-10-29T12:37:30.000Z" } ], "analyses": { "subjects": [ "05C80", "90B15", "82B27" ], "keywords": [ "random intersection graph", "critical scaling limits", "largest components", "wide universality class", "inhomogeneous random graph models" ], "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable" } } }