{ "id": "0909.1472", "version": "v3", "published": "2009-09-08T12:13:00.000Z", "updated": "2012-11-22T08:53:22.000Z", "title": "Novel scaling limits for critical inhomogeneous random graphs", "authors": [ "Shankar Bhamidi", "Remco van der Hofstad", "Johan S. H. van Leeuwaarden" ], "comment": "Published in at http://dx.doi.org/10.1214/11-AOP680 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)", "journal": "Annals of Probability 2012, Vol. 40, No. 6, 2299-2361", "doi": "10.1214/11-AOP680", "categories": [ "math.PR", "math.CO" ], "abstract": "We find scaling limits for the sizes of the largest components at criticality for rank-1 inhomogeneous random graphs with power-law degrees with power-law exponent \\tau. We investigate the case where $\\tau\\in(3,4)$, so that the degrees have finite variance but infinite third moment. The sizes of the largest clusters, rescaled by $n^{-(\\tau-2)/(\\tau-1)}$, converge to hitting times of a \"thinned\" L\\'{e}vy process, a special case of the general multiplicative coalescents studied by Aldous [Ann. Probab. 25 (1997) 812-854] and Aldous and Limic [Electron. J. Probab. 3 (1998) 1-59]. Our results should be contrasted to the case \\tau>4, so that the third moment is finite. There, instead, the sizes of the components rescaled by $n^{-2/3}$ converge to the excursion lengths of an inhomogeneous Brownian motion, as proved in Aldous [Ann. Probab. 25 (1997) 812-854] for the Erd\\H{o}s-R\\'{e}nyi random graph and extended to the present setting in Bhamidi, van der Hofstad and van Leeuwaarden [Electron. J. Probab. 15 (2010) 1682-1703] and Turova [(2009) Preprint].", "revisions": [ { "version": "v3", "updated": "2012-11-22T08:53:22.000Z" } ], "analyses": { "keywords": [ "critical inhomogeneous random graphs", "novel scaling limits", "infinite third moment", "van der hofstad", "van leeuwaarden" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0909.1472B" } } }